266493
In YDSE, a mica slit of thickness t and refractive index \(\mu\) is introduced in the ray from the first source \(\mathbf{S}\). By how much distance the fringes pattern will be displaced
1 \(\frac{d}{D}(\mu-1) t\)
2 \(\frac{D}{d}(\mu-1) t\)
3 \(\frac{d(\mu-1)}{D}\)
4 \(\frac{\mathrm{D}(\mu-1)}{\mathrm{d}}\)
Explanation:
b
**NCERT-XIIII-265**
TEST SERIES (PHYSICS FST)
266494
A hollow conducting sphere is placed in an electric field produced by a point charge placed at \(P\) as shown in the figure. Let \(V_A, V_B, V_C\) be the potentials at points A, B and C respectively. Then
d The sphere is a conductor and all three points \(\mathrm{A}, \mathrm{B}\) and \(C\) lie on its surface, which is equipotential \[ \therefore \quad V_{\mathrm{A}}=\mathrm{V}_{\mathrm{E}}=\mathrm{V}_{\mathrm{c}} \]
**NCERT-XII-I48**
TEST SERIES (PHYSICS FST)
266495
Point masses \(1,2,3\) and 4 kg are lying at the point \((0,0,0),(2,0,0),(0,3,0)\) and \((-2,-2,0)\) respectively. The moment of inertia of this system about x-axis will be
1 \(43 \mathrm{~kg} \mathrm{~m}{ }^2\)
2 \(34 \mathrm{~kg} \mathrm{~m}^2\)
3 \(27 \mathrm{~kg} \mathrm{~m}^2\)
4 \(72 \mathrm{~kg} \mathrm{~m}^2\)
Explanation:
a The M.I of system about \(x\)-axis \[ \begin{aligned} & =I_1+I_2+I_3+I_4 \\ & =0+0+3 \times(3)^2+4 \times(-2)^2 \\ & =27+16=43 \mathrm{~kg}-\mathrm{m}^2 \end{aligned} \]
**NCERT-XI-I-114**
TEST SERIES (PHYSICS FST)
266496
Assertion : In metre bridge experiment, a high resistance is always connected in series with a galvanometer. Reas on: As resistance increases current through the circuit increases.
1 Assertion is correct, reason is correct; reason is a correct explanation for assertion.
2 Assertion is correct, reason is correct; reason is not a correct explanation for assertion.
266493
In YDSE, a mica slit of thickness t and refractive index \(\mu\) is introduced in the ray from the first source \(\mathbf{S}\). By how much distance the fringes pattern will be displaced
1 \(\frac{d}{D}(\mu-1) t\)
2 \(\frac{D}{d}(\mu-1) t\)
3 \(\frac{d(\mu-1)}{D}\)
4 \(\frac{\mathrm{D}(\mu-1)}{\mathrm{d}}\)
Explanation:
b
**NCERT-XIIII-265**
TEST SERIES (PHYSICS FST)
266494
A hollow conducting sphere is placed in an electric field produced by a point charge placed at \(P\) as shown in the figure. Let \(V_A, V_B, V_C\) be the potentials at points A, B and C respectively. Then
d The sphere is a conductor and all three points \(\mathrm{A}, \mathrm{B}\) and \(C\) lie on its surface, which is equipotential \[ \therefore \quad V_{\mathrm{A}}=\mathrm{V}_{\mathrm{E}}=\mathrm{V}_{\mathrm{c}} \]
**NCERT-XII-I48**
TEST SERIES (PHYSICS FST)
266495
Point masses \(1,2,3\) and 4 kg are lying at the point \((0,0,0),(2,0,0),(0,3,0)\) and \((-2,-2,0)\) respectively. The moment of inertia of this system about x-axis will be
1 \(43 \mathrm{~kg} \mathrm{~m}{ }^2\)
2 \(34 \mathrm{~kg} \mathrm{~m}^2\)
3 \(27 \mathrm{~kg} \mathrm{~m}^2\)
4 \(72 \mathrm{~kg} \mathrm{~m}^2\)
Explanation:
a The M.I of system about \(x\)-axis \[ \begin{aligned} & =I_1+I_2+I_3+I_4 \\ & =0+0+3 \times(3)^2+4 \times(-2)^2 \\ & =27+16=43 \mathrm{~kg}-\mathrm{m}^2 \end{aligned} \]
**NCERT-XI-I-114**
TEST SERIES (PHYSICS FST)
266496
Assertion : In metre bridge experiment, a high resistance is always connected in series with a galvanometer. Reas on: As resistance increases current through the circuit increases.
1 Assertion is correct, reason is correct; reason is a correct explanation for assertion.
2 Assertion is correct, reason is correct; reason is not a correct explanation for assertion.
266493
In YDSE, a mica slit of thickness t and refractive index \(\mu\) is introduced in the ray from the first source \(\mathbf{S}\). By how much distance the fringes pattern will be displaced
1 \(\frac{d}{D}(\mu-1) t\)
2 \(\frac{D}{d}(\mu-1) t\)
3 \(\frac{d(\mu-1)}{D}\)
4 \(\frac{\mathrm{D}(\mu-1)}{\mathrm{d}}\)
Explanation:
b
**NCERT-XIIII-265**
TEST SERIES (PHYSICS FST)
266494
A hollow conducting sphere is placed in an electric field produced by a point charge placed at \(P\) as shown in the figure. Let \(V_A, V_B, V_C\) be the potentials at points A, B and C respectively. Then
d The sphere is a conductor and all three points \(\mathrm{A}, \mathrm{B}\) and \(C\) lie on its surface, which is equipotential \[ \therefore \quad V_{\mathrm{A}}=\mathrm{V}_{\mathrm{E}}=\mathrm{V}_{\mathrm{c}} \]
**NCERT-XII-I48**
TEST SERIES (PHYSICS FST)
266495
Point masses \(1,2,3\) and 4 kg are lying at the point \((0,0,0),(2,0,0),(0,3,0)\) and \((-2,-2,0)\) respectively. The moment of inertia of this system about x-axis will be
1 \(43 \mathrm{~kg} \mathrm{~m}{ }^2\)
2 \(34 \mathrm{~kg} \mathrm{~m}^2\)
3 \(27 \mathrm{~kg} \mathrm{~m}^2\)
4 \(72 \mathrm{~kg} \mathrm{~m}^2\)
Explanation:
a The M.I of system about \(x\)-axis \[ \begin{aligned} & =I_1+I_2+I_3+I_4 \\ & =0+0+3 \times(3)^2+4 \times(-2)^2 \\ & =27+16=43 \mathrm{~kg}-\mathrm{m}^2 \end{aligned} \]
**NCERT-XI-I-114**
TEST SERIES (PHYSICS FST)
266496
Assertion : In metre bridge experiment, a high resistance is always connected in series with a galvanometer. Reas on: As resistance increases current through the circuit increases.
1 Assertion is correct, reason is correct; reason is a correct explanation for assertion.
2 Assertion is correct, reason is correct; reason is not a correct explanation for assertion.
266493
In YDSE, a mica slit of thickness t and refractive index \(\mu\) is introduced in the ray from the first source \(\mathbf{S}\). By how much distance the fringes pattern will be displaced
1 \(\frac{d}{D}(\mu-1) t\)
2 \(\frac{D}{d}(\mu-1) t\)
3 \(\frac{d(\mu-1)}{D}\)
4 \(\frac{\mathrm{D}(\mu-1)}{\mathrm{d}}\)
Explanation:
b
**NCERT-XIIII-265**
TEST SERIES (PHYSICS FST)
266494
A hollow conducting sphere is placed in an electric field produced by a point charge placed at \(P\) as shown in the figure. Let \(V_A, V_B, V_C\) be the potentials at points A, B and C respectively. Then
d The sphere is a conductor and all three points \(\mathrm{A}, \mathrm{B}\) and \(C\) lie on its surface, which is equipotential \[ \therefore \quad V_{\mathrm{A}}=\mathrm{V}_{\mathrm{E}}=\mathrm{V}_{\mathrm{c}} \]
**NCERT-XII-I48**
TEST SERIES (PHYSICS FST)
266495
Point masses \(1,2,3\) and 4 kg are lying at the point \((0,0,0),(2,0,0),(0,3,0)\) and \((-2,-2,0)\) respectively. The moment of inertia of this system about x-axis will be
1 \(43 \mathrm{~kg} \mathrm{~m}{ }^2\)
2 \(34 \mathrm{~kg} \mathrm{~m}^2\)
3 \(27 \mathrm{~kg} \mathrm{~m}^2\)
4 \(72 \mathrm{~kg} \mathrm{~m}^2\)
Explanation:
a The M.I of system about \(x\)-axis \[ \begin{aligned} & =I_1+I_2+I_3+I_4 \\ & =0+0+3 \times(3)^2+4 \times(-2)^2 \\ & =27+16=43 \mathrm{~kg}-\mathrm{m}^2 \end{aligned} \]
**NCERT-XI-I-114**
TEST SERIES (PHYSICS FST)
266496
Assertion : In metre bridge experiment, a high resistance is always connected in series with a galvanometer. Reas on: As resistance increases current through the circuit increases.
1 Assertion is correct, reason is correct; reason is a correct explanation for assertion.
2 Assertion is correct, reason is correct; reason is not a correct explanation for assertion.
