NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1330 - 1334 of 2142
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Question number: 1330
Question
The intensities of two light sources are I and 9I respectively. If the phase difference between the waves emitted by them is π then the resultant intensity at the point of observation will be –
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 3I |
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| b. | 10I |
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| c. | 82I |
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| d. | 4I |
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Question number: 1331
» Thermodynamics » Concept of Temperature
Question
An ideal gas expands isothermally from a volume V 1 to V 2 and then compressed to original volume V 1 adiabatically. Initial pressure is P 1 and final pressure is P 3. The total work done is W. Then
Choices
| Choice (4) | Response | |
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| a. |
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| b. |
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| c. |
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| d. |
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Question number: 1332
» Properties of Solids & Liquids » Surface Energy and Surface Tension
Question
Radius of a capillary tube is 2 x 10 -3 m. A liquid of weight 6.28 x 10 -4 N may remain in the capillary tube then the surface tension of liquid will be
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 5 x 10 -2 N/m |
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| b. | 5 x 10 -3 N/m |
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| c. | 50 N/m |
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| d. | 5 N/m |
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Question number: 1333
» Properties of Solids & Liquids » Thermal Expansion
Question
80 gm of copper is heated to increase its temperature 10°C. If the same quantity of heat is given to 10 gm water, the rise in its temperature is (Specific heat of copper = 420 Joule-kg -1 C -1)
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 6°C |
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| b. | 8°C |
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| c. | 5°C |
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| d. | 7°C |
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Question number: 1334
» Properties of Solids & Liquids » Young's Modulus
Question
Which of the following relations are false
(1)
(2)
(3)
(4)
Select the correct answers and mark it according to the following codes:
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 1 and 3 are correct |
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| b. | 1, 2 and 3 are correct |
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| c. | 2 and 4 are correct |
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| d. | 1 and 2 are correct |
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