NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1121 - 1125 of 2320

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Question number: 1121

» Ray Optics » Power of a Lens

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MCQ▾

Question

If the focal length of a magnifier is 5 cm find the magnifying power of the lens for relaxed and strained eye.

Choices

Choice (4)Response

a.

4×, 2×

b.

2×, 3×

c.

l×, 2×

d.

4×, 5×

Question number: 1122

» Ray Optics » Lens Maker's Formula and Lens Formula

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MCQ▾

Question

A pin is placed 10 cm in front of a convex lens of focal length 20 cm, made of material having refractive index 1.5. The surface of the lens farther away from the pin is silvered and has a radius of curvature 22 cm. determine the position of the final image.

Choices

Choice (4)Response

a.

15 cm in front

b.

11 cm in front

c.

21 cm in front

d.

31 cm in front

Question number: 1123

» Electromagnetic Induction & Alternating Currents » LCR Series Circuit

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MCQ▾

Question

For a series LCR circuit R = X L = 2X C. The impedance of the circuit and phase difference between V and I respectively will be

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 1124

» Ray Optics » Reflection and Refraction of Light » Spherical Surface

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MCQ▾

Question

Two plane mirrors are placed at an angle a so that a ray parallel to one mirror gets reflected parallel to the second mirror after two consecutive reflections. The value of a will be

Choices

Choice (4)Response

a.

75°

b.

30°

c.

90°

d.

60°

Question number: 1125

» Electrostatics » Capacitors

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MCQ▾

Question

The charging current for a capacitor is 1 A, then the displacement current is

Choices

Choice (4)Response

a.

1 A

b.

0

c.

2 A

d.

0.5 A

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