# KVPY (Kishore Vaigyanik Protsahan Yojana) Stream SB-SX (Class 12 & 1st Year B.Sc.) Physics: Questions 47 - 50 of 268

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## Question number: 47

Appeared in Year: 2011

MCQ▾

### Question

A particle moves in a plane along an elliptic path given by At point (0, b), the x – component of velocity is u. The y – component of acceleration at this point is –

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 48

Appeared in Year: 2011

MCQ▾

### Question

A material is embedded between two glass plates. Refractive index n of the material varies with thickness as shown below. The maximum incident angle (in degrees) on the material for which beam will pass through the material is –

### Choices

Choice (4) Response

a.

60.0

b.

53.1

c.

43.5

d.

32.3

## Question number: 49

Appeared in Year: 2012

MCQ▾

### Question

In a Young’s double slit experiment the intensity of light at each slit is Ι0. Interference pattern is observed along a direction parallel to the line S1 S2 on screen S.

The minimum, maximum, and the intensity averaged over the entire screen are respectively.

### Choices

Choice (4) Response

a.

0, 4Ι0, 2Ι0

b.

0, 4Ι0, Ι0

c.

0, 2Ι0, Ι0

d.

I

## Question number: 50

Appeared in Year: 2012

MCQ▾

### Question

A particle is acted upon by a force given by where α and β are positive constants. At the point x = 0, the particle is –

### Choices

Choice (4) Response

a.

In unstable equilibrium

b.

In stable equilibrium

c.

In neutral equilibrium

d.

None of the above

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