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AIIMS (All India Institute of Medical Sciences) Physics: Questions 320 - 324 of 500
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Question 320
Question MCQ▾
As in figure below shows plates of same size but of two different materials A and B are connected end to end in thermal contact. The open end of A is kept at and open end of B is kept at . The ratio of thermal conductivity of A and B is given as .
The steady – state temperature of the interface is -
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |
Question 321
Question MCQ▾
The current passing through a choke coil of 9 H is decreasing at the rate of . The emf developing across the coil is –
Choices
Choice (4) | Response | |
---|---|---|
a. | -27 V | |
b. | – 3.0 V | |
c. | 27 V | |
d. | 3 V |
Question 322
Question MCQ▾
The reactance of an inductance of 0.05H for 100 Hz A. C. is –
Choices
Choice (4) | Response | |
---|---|---|
a. | 62.8 Ω | |
b. | 31.4 Ω | |
c. | 3.14 Ω | |
d. | 6.28 Ω |
Question 323
Question MCQ▾
If a spring balance reads 15 kg when a bucket of water is suspended from it, then what will be the reading of the spring balance when a steel piece of 12 kg suspended from another spring is immersed with half its volume inside water in the bucket?
(Density of the steel is )
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |
Question 324
Appeared in Year: 2003
Question Assertion-Reason▾
Assertion(Ꭺ)
Owls can move freely during night
Reason(Ꭱ)
They have large number of rods on their retina
Choices
Choice (4) | Response | |
---|---|---|
a. | Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ | |
b. | Both Ꭺ and Ꭱ are false | |
c. | Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ | |
d. | Ꭺ is false but Ꭱ is true |