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AIIMS (All India Institute of Medical Sciences) Physics: Questions 256 - 260 of 500
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Question 256
Question MCQ▾
A body of mass 7 kg is moving in a circle of diameter 2 m with an angular velocity of . The centripetal force is –
Choices
Choice (4) | Response | |
---|---|---|
a. | 175 N | |
b. | 75 N | |
c. | 350 N | |
d. | 100 N |
Question 257
Appeared in Year: 2000
Question Assertion-Reason▾
Assertion(Ꭺ)
Like sound, light cannot propagate in vacuum.
Reason(Ꭱ)
Sound is a square wave. It propagates in a medium by virtue of damping oscillation.
Choices
Choice (4) | Response | |
---|---|---|
a. | Ꭺ is true but Ꭱ is 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. | Both Ꭺ and Ꭱ are false |
Question 258
Question MCQ▾
A capacitor of capacitance is connected in the tank circuit of an oscillator oscillating with a frequency of 2 kHz. If the current flowing in the circuit is 5 mA, the voltage across the capacitor will be –
Choices
Choice (4) | Response | |
---|---|---|
a. | 0.165 V | |
b. | 81.5 V | |
c. | 0.133 V | |
d. | 159 V |
Question 259
Question MCQ▾
The current passing through a choke coil of 12 H is decreasing at the rate of . The emf developing across the coil is –
Choices
Choice (4) | Response | |
---|---|---|
a. | 12 V | |
b. | – 12 V | |
c. | 6 V | |
d. | – 6 V |
Question 260
Question MCQ▾
The velocity of projection of an oblique projectile is The horizontal range of the projectile is –
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |