# Light & Optics (AP (Advanced Placement) Physics(B-C)): Questions 1 - 4 of 69

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## Question number: 1

» Light & Optics

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MCQ▾

### Question

If a light beam passing through two slits separated by and the third bright line on a screen is formed at an angle of relative to the incident beam, then what is the wavelength of light?

### Choices

Choice (5) Response

a.

b.

c.

d.

e.

Question does not provide sufficient data or is vague

## Question number: 2

» Light & Optics

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MCQ▾

### Question

Light travels from a medium with an index of refraction to a medium with an index of refraction , which is greater than . Which of the following must be true for total internal reflection to occur at this interface?

### Choices

Choice (5) Response

a.

The incident angle must be greater than .

b.

Total internal reflection is not possible in this situation.

c.

The incident angle must be greater than .

d.

The incident angle must be less than .

e.

None of the above

## Question number: 3

» Light & Optics

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MCQ▾

### Question

A prism is made of glass of unknown refractive index. A parallel beam of light is incident on a face of the prism. The angle of minimum deviation is measured to be . If the refracting angle of the prism is , then the refractive index of the prism is:

### Choices

Choice (5) Response

a.

1.33

b.

1.55

c.

1

d.

1.44

e.

None of the above

## Question number: 4

» Light & Optics

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MCQ▾

### Question

A microscope has total magnification . The magnification produced by objective is . If least distance of distance vision is , then focal length of the eyepiece is:

### Choices

Choice (5) Response

a.

b.

c.

d.

e.

Question does not provide sufficient data or is vague