NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1111 - 1115 of 2142

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Question number: 1111

» Electromagnetic Waves » Electromagnetic Spectrum » Others

MCQ▾

Question

The frequency of 3 to 30 kHz is known as,

Choices

Choice (4) Response

a.

Ultra high frequency band

b.

Medium frequency band

c.

High frequency band

d.

Audio band

Question number: 1112

» Electromagnetic Induction & Alternating Currents » LCR Series Circuit

MCQ▾

Question

The figure shows variation of R, X L and X C with frequency f in a series LCR circuit. Then for what frequency point, the circuit is inductive?

Graph of R, XL and XC

Graph of R, XL and XC

Figure shows the variation of R, XL and XC with frequency f in a LCR circuit.

Choices

Choice (4) Response

a.

A

b.

B

c.

C

d.

All of the above

Question number: 1113

» Ray Optics » Mirror Formula

MCQ▾

Question

An object is placed at a distance of 50 cm from a convex mirror. A plane mirror is placed in front of the convex mirror in such a way that it convers half of the convex mirror. If the distance between object and plane mirror is 30 cm then there is no parallax between the images formed by two mirrors, the radius of curvature of convex mirror will be:

Choices

Choice (4) Response

a.

50 cm

b.

25 cm

c.

100cm

d.

12.5 cm

Question number: 1114

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

MCQ▾

Question

The plane of a mirror makes an angle of 30° with horizontal. If a vertical ray is incident on a mirror, then what is the angle between mirror and reflected ray?

Choices

Choice (4) Response

a.

90°

b.

60°

c.

30°

d.

45°

Question number: 1115

» Ray Optics » Snell's Law

MCQ▾

Question

Light of wavelength 6000 Å enters from air into water (a medium of refractive index 4/3). Find the speed and wavelength [c = 3 × 10 8 m/s]

Choices

Choice (4) Response

a.

3.15 × 10 8 m/s, 3500A

b.

2.25 × 10 8 m/s, 4500A

c.

1.25 × 10 8 m/s, 2500A

d.

3.45 × 10 8 m/s, 5500A

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