160765
Assertion : Mass is a property of one object alone, whereas weight results from the interaction of two objects. Reason : If the weight is measured from a noninertial frame, the measurement gives an apparent weight instead of the actual weight.
1 If both assertion and reason are true and reason is the correct explanation of assertion.
2 If both assertion and reason are true but reason is not the correct explanation of assertion.
3 If assertion is true but reason is false.
4 If both assertion and reason are false.
Explanation:
If both assertion and reason are true but reason is not the correct explanation of assertion.
NCERT-I-90
2 RBTS PAPER
160766
The momentum of a body is :
1 a vector equal in magnitude to the product of mass and instantaneous velocity and direction being that of instantaneous velocity
2 a scalar equal in magnitude to the product of mass and velocity
3 a vector equal in magnitude to the product of mass and average speed and direction/being that of velocity
4 a vector equal in magnitude to the product of mass and acceleration and direction being that of velocity
Explanation:
a vector equal in magnitude to the product of mass and instantaneous velocity and direction being that of instantaneous velocity. $\vec{p}=m \vec{v}$
NCERT-I-94
2 RBTS PAPER
160767
(i) (ii) (iii) (iv) If the vessel is given constant retardation towards the right along a straight line, which of the above diagrams represents the surface of the liquid?
1 (ii)
2 (i)
3 (iv)
4 (iii)
Explanation:
(iii)
NLI Expert
2 RBTS PAPER
160768
A ball falls from $20 \mathrm{~m}$ height on floor and rebounds to $5 \mathrm{~m}$. Time of contact is $\mathbf{0 . 0 2} \mathrm{sec}$. Find acceleration during impact.
1 $2000 \mathrm{~m} / \mathrm{s}^2$
2 $1000 \mathrm{~m} / \mathrm{s}^2$
3 $1500 \mathrm{~m} / \mathrm{s}^2$
4 $1200 \mathrm{~m} / \mathrm{s}^2$
Explanation:
According to Newton's second law of motion, force acting on a body is equal to the rate of change of momentum during impact $\mathrm{F}=\frac{\Delta \mathrm{p}}{\Delta \mathrm{t}}$ Also $\mathrm{F}=\mathrm{ma}$ $\therefore \mathrm{ma}=\frac{\mathrm{p}_2-\mathrm{p}_1}{\Delta \mathrm{t}}$ or $\mathrm{a}=\frac{\mathrm{mv}_2\left(-\mathrm{mv}_1\right)}{\mathrm{m} \Delta \mathrm{t}}$ or $\mathrm{a}=\frac{\mathrm{v}_2+\mathrm{v}_1}{\Delta \mathrm{t}}$ or $\mathrm{a}=\frac{\sqrt{2 \times 10 \times 20}+\sqrt{2 \times 10 \times 5}}{0.02}$ or $\mathrm{a}=\frac{20+10}{0.02}=1500 \mathrm{~m} / \mathrm{s}$
NCERT-I-94
2 RBTS PAPER
160769
A boy sitting on the topmost berth in the compartment of a train, which is just going to stop on a railway station, drops an apple aiming at the open hand of his brother sitting vertically below his hands at about $2 \mathrm{~m}$. The apple will fall
1 precisely on the hand of his brother
2 slightly away from the hand of his brother in the direction opposite to the direction of motion of the train
3 slightly away from the hand of his brother in the direction of motion of the train
4 None of these
Explanation:
Although the horizatalyecity of apple will remain same but duefration of train and velocity of train, velod tOryboy with respect to ground decreases, so apple falls away from the hand of boy in exirection of motion of the train.
160765
Assertion : Mass is a property of one object alone, whereas weight results from the interaction of two objects. Reason : If the weight is measured from a noninertial frame, the measurement gives an apparent weight instead of the actual weight.
1 If both assertion and reason are true and reason is the correct explanation of assertion.
2 If both assertion and reason are true but reason is not the correct explanation of assertion.
3 If assertion is true but reason is false.
4 If both assertion and reason are false.
Explanation:
If both assertion and reason are true but reason is not the correct explanation of assertion.
NCERT-I-90
2 RBTS PAPER
160766
The momentum of a body is :
1 a vector equal in magnitude to the product of mass and instantaneous velocity and direction being that of instantaneous velocity
2 a scalar equal in magnitude to the product of mass and velocity
3 a vector equal in magnitude to the product of mass and average speed and direction/being that of velocity
4 a vector equal in magnitude to the product of mass and acceleration and direction being that of velocity
Explanation:
a vector equal in magnitude to the product of mass and instantaneous velocity and direction being that of instantaneous velocity. $\vec{p}=m \vec{v}$
NCERT-I-94
2 RBTS PAPER
160767
(i) (ii) (iii) (iv) If the vessel is given constant retardation towards the right along a straight line, which of the above diagrams represents the surface of the liquid?
1 (ii)
2 (i)
3 (iv)
4 (iii)
Explanation:
(iii)
NLI Expert
2 RBTS PAPER
160768
A ball falls from $20 \mathrm{~m}$ height on floor and rebounds to $5 \mathrm{~m}$. Time of contact is $\mathbf{0 . 0 2} \mathrm{sec}$. Find acceleration during impact.
1 $2000 \mathrm{~m} / \mathrm{s}^2$
2 $1000 \mathrm{~m} / \mathrm{s}^2$
3 $1500 \mathrm{~m} / \mathrm{s}^2$
4 $1200 \mathrm{~m} / \mathrm{s}^2$
Explanation:
According to Newton's second law of motion, force acting on a body is equal to the rate of change of momentum during impact $\mathrm{F}=\frac{\Delta \mathrm{p}}{\Delta \mathrm{t}}$ Also $\mathrm{F}=\mathrm{ma}$ $\therefore \mathrm{ma}=\frac{\mathrm{p}_2-\mathrm{p}_1}{\Delta \mathrm{t}}$ or $\mathrm{a}=\frac{\mathrm{mv}_2\left(-\mathrm{mv}_1\right)}{\mathrm{m} \Delta \mathrm{t}}$ or $\mathrm{a}=\frac{\mathrm{v}_2+\mathrm{v}_1}{\Delta \mathrm{t}}$ or $\mathrm{a}=\frac{\sqrt{2 \times 10 \times 20}+\sqrt{2 \times 10 \times 5}}{0.02}$ or $\mathrm{a}=\frac{20+10}{0.02}=1500 \mathrm{~m} / \mathrm{s}$
NCERT-I-94
2 RBTS PAPER
160769
A boy sitting on the topmost berth in the compartment of a train, which is just going to stop on a railway station, drops an apple aiming at the open hand of his brother sitting vertically below his hands at about $2 \mathrm{~m}$. The apple will fall
1 precisely on the hand of his brother
2 slightly away from the hand of his brother in the direction opposite to the direction of motion of the train
3 slightly away from the hand of his brother in the direction of motion of the train
4 None of these
Explanation:
Although the horizatalyecity of apple will remain same but duefration of train and velocity of train, velod tOryboy with respect to ground decreases, so apple falls away from the hand of boy in exirection of motion of the train.
160765
Assertion : Mass is a property of one object alone, whereas weight results from the interaction of two objects. Reason : If the weight is measured from a noninertial frame, the measurement gives an apparent weight instead of the actual weight.
1 If both assertion and reason are true and reason is the correct explanation of assertion.
2 If both assertion and reason are true but reason is not the correct explanation of assertion.
3 If assertion is true but reason is false.
4 If both assertion and reason are false.
Explanation:
If both assertion and reason are true but reason is not the correct explanation of assertion.
NCERT-I-90
2 RBTS PAPER
160766
The momentum of a body is :
1 a vector equal in magnitude to the product of mass and instantaneous velocity and direction being that of instantaneous velocity
2 a scalar equal in magnitude to the product of mass and velocity
3 a vector equal in magnitude to the product of mass and average speed and direction/being that of velocity
4 a vector equal in magnitude to the product of mass and acceleration and direction being that of velocity
Explanation:
a vector equal in magnitude to the product of mass and instantaneous velocity and direction being that of instantaneous velocity. $\vec{p}=m \vec{v}$
NCERT-I-94
2 RBTS PAPER
160767
(i) (ii) (iii) (iv) If the vessel is given constant retardation towards the right along a straight line, which of the above diagrams represents the surface of the liquid?
1 (ii)
2 (i)
3 (iv)
4 (iii)
Explanation:
(iii)
NLI Expert
2 RBTS PAPER
160768
A ball falls from $20 \mathrm{~m}$ height on floor and rebounds to $5 \mathrm{~m}$. Time of contact is $\mathbf{0 . 0 2} \mathrm{sec}$. Find acceleration during impact.
1 $2000 \mathrm{~m} / \mathrm{s}^2$
2 $1000 \mathrm{~m} / \mathrm{s}^2$
3 $1500 \mathrm{~m} / \mathrm{s}^2$
4 $1200 \mathrm{~m} / \mathrm{s}^2$
Explanation:
According to Newton's second law of motion, force acting on a body is equal to the rate of change of momentum during impact $\mathrm{F}=\frac{\Delta \mathrm{p}}{\Delta \mathrm{t}}$ Also $\mathrm{F}=\mathrm{ma}$ $\therefore \mathrm{ma}=\frac{\mathrm{p}_2-\mathrm{p}_1}{\Delta \mathrm{t}}$ or $\mathrm{a}=\frac{\mathrm{mv}_2\left(-\mathrm{mv}_1\right)}{\mathrm{m} \Delta \mathrm{t}}$ or $\mathrm{a}=\frac{\mathrm{v}_2+\mathrm{v}_1}{\Delta \mathrm{t}}$ or $\mathrm{a}=\frac{\sqrt{2 \times 10 \times 20}+\sqrt{2 \times 10 \times 5}}{0.02}$ or $\mathrm{a}=\frac{20+10}{0.02}=1500 \mathrm{~m} / \mathrm{s}$
NCERT-I-94
2 RBTS PAPER
160769
A boy sitting on the topmost berth in the compartment of a train, which is just going to stop on a railway station, drops an apple aiming at the open hand of his brother sitting vertically below his hands at about $2 \mathrm{~m}$. The apple will fall
1 precisely on the hand of his brother
2 slightly away from the hand of his brother in the direction opposite to the direction of motion of the train
3 slightly away from the hand of his brother in the direction of motion of the train
4 None of these
Explanation:
Although the horizatalyecity of apple will remain same but duefration of train and velocity of train, velod tOryboy with respect to ground decreases, so apple falls away from the hand of boy in exirection of motion of the train.
160765
Assertion : Mass is a property of one object alone, whereas weight results from the interaction of two objects. Reason : If the weight is measured from a noninertial frame, the measurement gives an apparent weight instead of the actual weight.
1 If both assertion and reason are true and reason is the correct explanation of assertion.
2 If both assertion and reason are true but reason is not the correct explanation of assertion.
3 If assertion is true but reason is false.
4 If both assertion and reason are false.
Explanation:
If both assertion and reason are true but reason is not the correct explanation of assertion.
NCERT-I-90
2 RBTS PAPER
160766
The momentum of a body is :
1 a vector equal in magnitude to the product of mass and instantaneous velocity and direction being that of instantaneous velocity
2 a scalar equal in magnitude to the product of mass and velocity
3 a vector equal in magnitude to the product of mass and average speed and direction/being that of velocity
4 a vector equal in magnitude to the product of mass and acceleration and direction being that of velocity
Explanation:
a vector equal in magnitude to the product of mass and instantaneous velocity and direction being that of instantaneous velocity. $\vec{p}=m \vec{v}$
NCERT-I-94
2 RBTS PAPER
160767
(i) (ii) (iii) (iv) If the vessel is given constant retardation towards the right along a straight line, which of the above diagrams represents the surface of the liquid?
1 (ii)
2 (i)
3 (iv)
4 (iii)
Explanation:
(iii)
NLI Expert
2 RBTS PAPER
160768
A ball falls from $20 \mathrm{~m}$ height on floor and rebounds to $5 \mathrm{~m}$. Time of contact is $\mathbf{0 . 0 2} \mathrm{sec}$. Find acceleration during impact.
1 $2000 \mathrm{~m} / \mathrm{s}^2$
2 $1000 \mathrm{~m} / \mathrm{s}^2$
3 $1500 \mathrm{~m} / \mathrm{s}^2$
4 $1200 \mathrm{~m} / \mathrm{s}^2$
Explanation:
According to Newton's second law of motion, force acting on a body is equal to the rate of change of momentum during impact $\mathrm{F}=\frac{\Delta \mathrm{p}}{\Delta \mathrm{t}}$ Also $\mathrm{F}=\mathrm{ma}$ $\therefore \mathrm{ma}=\frac{\mathrm{p}_2-\mathrm{p}_1}{\Delta \mathrm{t}}$ or $\mathrm{a}=\frac{\mathrm{mv}_2\left(-\mathrm{mv}_1\right)}{\mathrm{m} \Delta \mathrm{t}}$ or $\mathrm{a}=\frac{\mathrm{v}_2+\mathrm{v}_1}{\Delta \mathrm{t}}$ or $\mathrm{a}=\frac{\sqrt{2 \times 10 \times 20}+\sqrt{2 \times 10 \times 5}}{0.02}$ or $\mathrm{a}=\frac{20+10}{0.02}=1500 \mathrm{~m} / \mathrm{s}$
NCERT-I-94
2 RBTS PAPER
160769
A boy sitting on the topmost berth in the compartment of a train, which is just going to stop on a railway station, drops an apple aiming at the open hand of his brother sitting vertically below his hands at about $2 \mathrm{~m}$. The apple will fall
1 precisely on the hand of his brother
2 slightly away from the hand of his brother in the direction opposite to the direction of motion of the train
3 slightly away from the hand of his brother in the direction of motion of the train
4 None of these
Explanation:
Although the horizatalyecity of apple will remain same but duefration of train and velocity of train, velod tOryboy with respect to ground decreases, so apple falls away from the hand of boy in exirection of motion of the train.
160765
Assertion : Mass is a property of one object alone, whereas weight results from the interaction of two objects. Reason : If the weight is measured from a noninertial frame, the measurement gives an apparent weight instead of the actual weight.
1 If both assertion and reason are true and reason is the correct explanation of assertion.
2 If both assertion and reason are true but reason is not the correct explanation of assertion.
3 If assertion is true but reason is false.
4 If both assertion and reason are false.
Explanation:
If both assertion and reason are true but reason is not the correct explanation of assertion.
NCERT-I-90
2 RBTS PAPER
160766
The momentum of a body is :
1 a vector equal in magnitude to the product of mass and instantaneous velocity and direction being that of instantaneous velocity
2 a scalar equal in magnitude to the product of mass and velocity
3 a vector equal in magnitude to the product of mass and average speed and direction/being that of velocity
4 a vector equal in magnitude to the product of mass and acceleration and direction being that of velocity
Explanation:
a vector equal in magnitude to the product of mass and instantaneous velocity and direction being that of instantaneous velocity. $\vec{p}=m \vec{v}$
NCERT-I-94
2 RBTS PAPER
160767
(i) (ii) (iii) (iv) If the vessel is given constant retardation towards the right along a straight line, which of the above diagrams represents the surface of the liquid?
1 (ii)
2 (i)
3 (iv)
4 (iii)
Explanation:
(iii)
NLI Expert
2 RBTS PAPER
160768
A ball falls from $20 \mathrm{~m}$ height on floor and rebounds to $5 \mathrm{~m}$. Time of contact is $\mathbf{0 . 0 2} \mathrm{sec}$. Find acceleration during impact.
1 $2000 \mathrm{~m} / \mathrm{s}^2$
2 $1000 \mathrm{~m} / \mathrm{s}^2$
3 $1500 \mathrm{~m} / \mathrm{s}^2$
4 $1200 \mathrm{~m} / \mathrm{s}^2$
Explanation:
According to Newton's second law of motion, force acting on a body is equal to the rate of change of momentum during impact $\mathrm{F}=\frac{\Delta \mathrm{p}}{\Delta \mathrm{t}}$ Also $\mathrm{F}=\mathrm{ma}$ $\therefore \mathrm{ma}=\frac{\mathrm{p}_2-\mathrm{p}_1}{\Delta \mathrm{t}}$ or $\mathrm{a}=\frac{\mathrm{mv}_2\left(-\mathrm{mv}_1\right)}{\mathrm{m} \Delta \mathrm{t}}$ or $\mathrm{a}=\frac{\mathrm{v}_2+\mathrm{v}_1}{\Delta \mathrm{t}}$ or $\mathrm{a}=\frac{\sqrt{2 \times 10 \times 20}+\sqrt{2 \times 10 \times 5}}{0.02}$ or $\mathrm{a}=\frac{20+10}{0.02}=1500 \mathrm{~m} / \mathrm{s}$
NCERT-I-94
2 RBTS PAPER
160769
A boy sitting on the topmost berth in the compartment of a train, which is just going to stop on a railway station, drops an apple aiming at the open hand of his brother sitting vertically below his hands at about $2 \mathrm{~m}$. The apple will fall
1 precisely on the hand of his brother
2 slightly away from the hand of his brother in the direction opposite to the direction of motion of the train
3 slightly away from the hand of his brother in the direction of motion of the train
4 None of these
Explanation:
Although the horizatalyecity of apple will remain same but duefration of train and velocity of train, velod tOryboy with respect to ground decreases, so apple falls away from the hand of boy in exirection of motion of the train.
