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AIIMS (All India Institute of Medical Sciences) Physics: Questions 244 - 246 of 500
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Question 244
Appeared in Year: 2004
Question Assertion-Reason▾
Assertion(Ꭺ)
Heavy water is preferred over ordinary water as a moderator in reactors.
Reason(Ꭱ)
Heavy water used for slowing down the neutrons; has lesser absorption probability of neutrons than ordinary water.
Choices
Choice (4) | Response | |
---|---|---|
a. | Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ | |
b. | Ꭺ is true but Ꭱ is false | |
c. | Ꭺ is false but Ꭱ is true | |
d. | Both Ꭺ and Ꭱ are false |
Question 245
Question Assertion-Reason▾
Assertion(Ꭺ)
Smaller drops of liquid resist deforming forces better than the larger drops.
Reason(Ꭱ)
Excess pressure inside a drop is directly proportional to its surface area.
Choices
Choice (4) | Response | |
---|---|---|
a. | Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ | |
b. | Ꭺ is false but Ꭱ is true | |
c. | Both Ꭺ and Ꭱ are false | |
d. | Ꭺ is true but Ꭱ is false |
Question 246
Appeared in Year: 1994
Question Assertion-Reason▾
Assertion(Ꭺ)
The shape of an automobile is so designed that its front resembles the stream line pattern of the fluid through which it moves.
Reason(Ꭱ)
The shape of the automobile is made stream lined in order to reduce resistance offered by the fluid.
Choices
Choice (4) | Response | |
---|---|---|
a. | Both Ꭺ and Ꭱ are false | |
b. | Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ | |
c. | Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ | |
d. | Ꭺ is true but Ꭱ is false |