# NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 987 - 991 of 2320

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## Question number: 987

Edit
MCQ▾

### Question

Which of the following pairs of space and time varying E and B fields would generate a plane electromagnetic wave travelling in (-Z) direction?

### Choices

Choice (4)Response

a.

E Z, B Y

b.

E Y, B X

c.

E X, B Y

d.

E X, B Z

## Question number: 988

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

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MCQ▾

### Question

Two mirrors are inclined at an angle of 50°. Then what is the number of images formed for an object placed in between the mirrors?

### Choices

Choice (4)Response

a.

6

b.

1

c.

3

d.

7

## Question number: 989

Edit
MCQ▾

### Question

A light beam is travelling from Region I to Region IV (Refer Figure). The refractive index in Regions I, II, III and IV are respectively. The angle of incidence θ for which the beam just misses entering Region IV is,

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 990

Edit
MCQ▾

### Question

convex mirror is used to form the image of an object. Which of the following statements is wrong?

### Choices

Choice (4)Response

a.

The image is erect

b.

The image is diminished in size

c.

The image is real

d.

The image lies between the pole and the focus

## Question number: 991

Edit
MCQ▾

### Question

Light wave is travelling along + y-direction. If the corresponding E vector at that time is along + x-direction, B vector must be directed along.

### Choices

Choice (4)Response

a.

+ Z axis

b.

- Z axis

c.

X-axis

d.

Y-axis

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