NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1107 - 1111 of 2184

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Question number: 1107

» Wave Optics » Interference

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MCQ▾

Question

The intensity ratio of two waves is 9: 1. These waves produce the event of interference. The ratio of maximum to minimum intensity will be

Choices

Choice (4) Response

a.

1: 4

b.

1: 9

c.

4: 1

d.

9: 1

Question number: 1108

» Electromagnetic Waves » Electromagnetic Waves & Characteristics

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MCQ▾

Question

A magnetic field of a plane electromagnetic wave is given by B = 2 × 10 7 sin (0.5 × 10 3 x + 1.5 × 10 11 t) T. Frequency of the wave is,

Choices

Choice (4) Response

a.

13.9 GHz

b.

23.9 GHz

c.

12.9 GHz

d.

33.9 GHz

Question number: 1109

» Electromagnetic Waves » Electromagnetic Spectrum » Gamma Rays

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MCQ▾

Question

Which of the following radiations has the least wavelength?

Choices

Choice (4) Response

a.

X - rays

b.

γ - rays

c.

α - rays

d.

β - rays

Question number: 1110

» Ray Optics » Resolving Power of Microscopes and Astronomical Telescopes

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MCQ▾

Question

At normal levels of intensities, the eye is most sensitive to

Choices

Choice (4) Response

a.

Red green light

b.

Blue light

c.

Yellow light

d.

Red light

Question number: 1111

» Electromagnetic Induction & Alternating Currents » LCR Series Circuit

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MCQ▾

Question

For series LCR circuit, correct statements are

(1) Applied e. m. f. and potential difference across resistance may be in phase

(2) Applied e. m. f. and potential difference at inductor coil have phase difference of π/2

(3) Potential difference across resistance and capacitor have phase difference of π/2

(4) Potential difference at capacitor and inductor have phase difference of π/2

Select the correct answers and mark it according to the following codes:

Codes:

Choices

Choice (4) Response

a.

1 and 3 are correct

b.

2 and 4 are correct

c.

1 and 2 are correct

d.

1,2 and 3 are correct