KVPY Stream SB-SX (Class 12 & 1st Year B.Sc.) Physics: Questions 217 - 220 of 268
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Question number: 217
Appeared in Year: 2014
Question
What are the charges stored in the 1 µF and 2 µF capacitors in the circuit below, once the currents become steady?
Combination of Resistors and Capacitors
Figure shows a circuit diagram of combination of resistors and capacitors.
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 4 µC and 8 µC respectively |
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| b. | 3 µC and 6 µC respectively |
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| c. | 8 µC and 4 µC respectively |
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| d. | 6 µC and 3 µC respectively |
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Question number: 218
» Rotational Motion » Rotational Kinetic Energy
Question
A body rolls down an inclined plane. If its rotational kinetic energy is 50 % of its translation kinetic energy, then the body is –
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | A rod |
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| b. | A ring |
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| c. | A solid sphere |
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| d. | A solid cylinder |
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Question number: 219
» Thermodynamics » Concept of Temperature
Question
A solid copper sphere cools at the rate of 3.20 C per minute, when its temperature is 1770 C. Find the rate at which another solid copper sphere of twice the radius lose its temperature at 3770 C, if in both the cases, the room temperature is maintained at 270 C.
Choices
| Choice (4) | Response | |
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| b. | 7.290C min-1 |
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Question number: 220
» Dual Nature of Matter and Radiation » Photoelectric Effect
Question
If the wavelength of photon emitted due to transition of electron from third orbit to first orbit in a hydrogen atom is λ, then the wavelength of photon emitted due to transition of electron from fourth orbit to second orbit will be –
Choices
| Choice (4) | Response | |
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| b. |
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| c. |
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