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TEST SERIES (PHYSICS FST)

266612 The Young's modulus of a wire is numerically equal to the stress which will:

1 Not change the length of the wire

2 Double the length of the wire

3 Increase the length by

50 %

4 Change the area of cross-section of the wire to half

**NCERT-XI-II-169**

TEST SERIES (PHYSICS FST)

266636 A body of mass ' $m$ ' is lifted from surface of earth to altitude $h$ . The increase in gravitational P.E. of the body will be:

\frac{m g h R}{h + R}

2 mgh approximately if \(h<

3 Both 1 and 2

4 None of the above

**NCERT-284**

TEST SERIES (PHYSICS FST)

266637 The quantity of heat which can rise the temperature of x gm of a substance through $t_{1}^{\circ} C$ can rise the temperature of ygm of water throguh $t_{2}^{\circ} C$ is same. The ratio of specific heats of the substances is :-

\frac{y t_{1}}{x t_{2}}

\frac{x t_{2}}{y t_{1}}

\frac{y t_{2}}{x t_{1}}

\frac{{xt}_{2}}{yt}

Explanation:

c
$\begin{aligned} x c_{1} t_{1} = y c_{2} t_{2} \\ \frac{c_{1}}{c_{2}} = \frac{y t_{2}}{x t_{1}} \end{aligned}$

**NCERT-282**

TEST SERIES (PHYSICS FST)

266638 A cup is full of water at $4^{\circ} C$ water will overflow from the cup if.

1 temp. is increased slightly

2 temp is decreased slightly

3 In both 1 and 2

4 none, water will not overflow

Explanation:

c
kalume of water is minimum at $4^{\circ} C$ so it will fall in bothe cases

**NCERT-NLI-Exp**

TEST SERIES (PHYSICS FST)

266639 The blocks m , and $m_{2}$ are placed as shown in figure. A force $\vec{F}$ is applied on block $m_{1}$ . Then which of following is correct

1 both

m_{1}

and

m_{2}

may remain at rest

2 both

m_{1}

and

m_{2}

will move with same acceleration

m_{1}

and

m_{2}

will move with different accelerations

4 both

m_{1}

and

m_{2}

will must move.

**NCERT-34**

NEET DIGITAL LIBRARY

TEST SERIES (PHYSICS FST)

266612 The Young's modulus of a wire is numerically equal to the stress which will:

1 Not change the length of the wire

2 Double the length of the wire

3 Increase the length by

50 %

4 Change the area of cross-section of the wire to half

**NCERT-XI-II-169**

TEST SERIES (PHYSICS FST)

266636 A body of mass ' $m$ ' is lifted from surface of earth to altitude $h$ . The increase in gravitational P.E. of the body will be:

\frac{m g h R}{h + R}

2 mgh approximately if \(h<

3 Both 1 and 2

4 None of the above

**NCERT-284**

TEST SERIES (PHYSICS FST)

\frac{y t_{1}}{x t_{2}}

\frac{x t_{2}}{y t_{1}}

\frac{y t_{2}}{x t_{1}}

\frac{{xt}_{2}}{yt}

Explanation:

c
$\begin{aligned} x c_{1} t_{1} = y c_{2} t_{2} \\ \frac{c_{1}}{c_{2}} = \frac{y t_{2}}{x t_{1}} \end{aligned}$

**NCERT-282**

TEST SERIES (PHYSICS FST)

266638 A cup is full of water at $4^{\circ} C$ water will overflow from the cup if.

1 temp. is increased slightly

2 temp is decreased slightly

3 In both 1 and 2

4 none, water will not overflow

Explanation:

c
kalume of water is minimum at $4^{\circ} C$ so it will fall in bothe cases

**NCERT-NLI-Exp**

TEST SERIES (PHYSICS FST)

266639 The blocks m , and $m_{2}$ are placed as shown in figure. A force $\vec{F}$ is applied on block $m_{1}$ . Then which of following is correct

1 both

m_{1}

and

m_{2}

may remain at rest

2 both

m_{1}

and

m_{2}

will move with same acceleration

m_{1}

and

m_{2}

will move with different accelerations

4 both

m_{1}

and

m_{2}

will must move.

**NCERT-34**

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TEST SERIES (PHYSICS FST)

266612 The Young's modulus of a wire is numerically equal to the stress which will:

1 Not change the length of the wire

2 Double the length of the wire

3 Increase the length by

50 %

4 Change the area of cross-section of the wire to half

**NCERT-XI-II-169**

TEST SERIES (PHYSICS FST)

266636 A body of mass ' $m$ ' is lifted from surface of earth to altitude $h$ . The increase in gravitational P.E. of the body will be:

\frac{m g h R}{h + R}

2 mgh approximately if \(h<

3 Both 1 and 2

4 None of the above

**NCERT-284**

TEST SERIES (PHYSICS FST)

\frac{y t_{1}}{x t_{2}}

\frac{x t_{2}}{y t_{1}}

\frac{y t_{2}}{x t_{1}}

\frac{{xt}_{2}}{yt}

Explanation:

c
$\begin{aligned} x c_{1} t_{1} = y c_{2} t_{2} \\ \frac{c_{1}}{c_{2}} = \frac{y t_{2}}{x t_{1}} \end{aligned}$

**NCERT-282**

TEST SERIES (PHYSICS FST)

266638 A cup is full of water at $4^{\circ} C$ water will overflow from the cup if.

1 temp. is increased slightly

2 temp is decreased slightly

3 In both 1 and 2

4 none, water will not overflow

Explanation:

c
kalume of water is minimum at $4^{\circ} C$ so it will fall in bothe cases

**NCERT-NLI-Exp**

TEST SERIES (PHYSICS FST)

266639 The blocks m , and $m_{2}$ are placed as shown in figure. A force $\vec{F}$ is applied on block $m_{1}$ . Then which of following is correct

1 both

m_{1}

and

m_{2}

may remain at rest

2 both

m_{1}

and

m_{2}

will move with same acceleration

m_{1}

and

m_{2}

will move with different accelerations

4 both

m_{1}

and

m_{2}

will must move.

**NCERT-34**

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TEST SERIES (PHYSICS FST)

266612 The Young's modulus of a wire is numerically equal to the stress which will:

1 Not change the length of the wire

2 Double the length of the wire

3 Increase the length by

50 %

4 Change the area of cross-section of the wire to half

**NCERT-XI-II-169**

TEST SERIES (PHYSICS FST)

266636 A body of mass ' $m$ ' is lifted from surface of earth to altitude $h$ . The increase in gravitational P.E. of the body will be:

\frac{m g h R}{h + R}

2 mgh approximately if \(h<

3 Both 1 and 2

4 None of the above

**NCERT-284**

TEST SERIES (PHYSICS FST)

\frac{y t_{1}}{x t_{2}}

\frac{x t_{2}}{y t_{1}}

\frac{y t_{2}}{x t_{1}}

\frac{{xt}_{2}}{yt}

Explanation:

c
$\begin{aligned} x c_{1} t_{1} = y c_{2} t_{2} \\ \frac{c_{1}}{c_{2}} = \frac{y t_{2}}{x t_{1}} \end{aligned}$

**NCERT-282**

TEST SERIES (PHYSICS FST)

266638 A cup is full of water at $4^{\circ} C$ water will overflow from the cup if.

1 temp. is increased slightly

2 temp is decreased slightly

3 In both 1 and 2

4 none, water will not overflow

Explanation:

c
kalume of water is minimum at $4^{\circ} C$ so it will fall in bothe cases

**NCERT-NLI-Exp**

TEST SERIES (PHYSICS FST)

266639 The blocks m , and $m_{2}$ are placed as shown in figure. A force $\vec{F}$ is applied on block $m_{1}$ . Then which of following is correct

1 both

m_{1}

and

m_{2}

may remain at rest

2 both

m_{1}

and

m_{2}

will move with same acceleration

m_{1}

and

m_{2}

will move with different accelerations

4 both

m_{1}

and

m_{2}

will must move.

**NCERT-34**

NEET DIGITAL LIBRARY

TEST SERIES (PHYSICS FST)

266612 The Young's modulus of a wire is numerically equal to the stress which will:

1 Not change the length of the wire

2 Double the length of the wire

3 Increase the length by

50 %

4 Change the area of cross-section of the wire to half

**NCERT-XI-II-169**

TEST SERIES (PHYSICS FST)

266636 A body of mass ' $m$ ' is lifted from surface of earth to altitude $h$ . The increase in gravitational P.E. of the body will be:

\frac{m g h R}{h + R}

2 mgh approximately if \(h<

3 Both 1 and 2

4 None of the above

**NCERT-284**

TEST SERIES (PHYSICS FST)

\frac{y t_{1}}{x t_{2}}

\frac{x t_{2}}{y t_{1}}

\frac{y t_{2}}{x t_{1}}

\frac{{xt}_{2}}{yt}

Explanation:

c
$\begin{aligned} x c_{1} t_{1} = y c_{2} t_{2} \\ \frac{c_{1}}{c_{2}} = \frac{y t_{2}}{x t_{1}} \end{aligned}$

**NCERT-282**

TEST SERIES (PHYSICS FST)

266638 A cup is full of water at $4^{\circ} C$ water will overflow from the cup if.

1 temp. is increased slightly

2 temp is decreased slightly

3 In both 1 and 2

4 none, water will not overflow

Explanation:

c
kalume of water is minimum at $4^{\circ} C$ so it will fall in bothe cases

**NCERT-NLI-Exp**

TEST SERIES (PHYSICS FST)

266639 The blocks m , and $m_{2}$ are placed as shown in figure. A force $\vec{F}$ is applied on block $m_{1}$ . Then which of following is correct

1 both

m_{1}

and

m_{2}

may remain at rest

2 both

m_{1}

and

m_{2}

will move with same acceleration

m_{1}

and

m_{2}

will move with different accelerations

4 both

m_{1}

and

m_{2}

will must move.

**NCERT-34**