AIIMS (All India Institute of Medical Sciences) Physics: Questions 321 - 325 of 500

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Question number: 321

» Electromagnetic Induction & Alternating Currents » Self and Mutual Inductance

MCQ▾

Question

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.

-27 V

c.

3 V

d.

– 3.0 V

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Question number: 322

» Electromagnetic Induction & Alternating Currents » Reactance and Impedance

MCQ▾

Question

The reactance of an inductance of 0.05H for 100 Hz A. C. is –

Choices

Choice (4) Response

a.

31.4 Ω

b.

6.28 Ω

c.

3.14 Ω

d.

62.8 Ω

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Question number: 323

» Properties of Solids & Liquids » Pressure Due to a Fluid Column

MCQ▾

Question

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.

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Question number: 324

» Ray Optics » The Eye

Appeared in Year: 2003

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.

Ꭺ is false but Ꭱ is true

b.

Ꭺ is true but Ꭱ is false

c.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

d.

Both Ꭺ and Ꭱ are false

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Question number: 325

» Electromagnetic Induction & Alternating Currents » Reactance and Impedance

MCQ▾

Question

The impedance of a circuit, when a resistance and a capacitor of capacitance are connected in series in an A. C. circuit of frequency 50 Hz is –

Choices

Choice (4) Response

a.

b.

c.

d.

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