# AP (Advanced Placement) Physics(B-C): Questions 434 - 438 of 921

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## Question number: 434

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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: 435

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MCQ▾

### Question

The time taken by a moving object to cover the distance is . This time is depending on the acceleration , velocity and displacement . Which of the following equation could be correct dimensionally?

### Choices

Choice (5)Response

a.

b.

c.

d.

e.

Question does not provide sufficient data or is vague

## Question number: 436

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MCQ▾

### Question

Calculate the energy stored in a spring of spring constant , when it is compressed by an external force up to from its rest position?

### Choices

Choice (5)Response

a.

b.

c.

d.

e.

None of the above

## Question number: 437

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MCQ▾

### Question

How many nano meter equal to one kilo – meter?

### Choices

Choice (5)Response

a.

b.

c.

d.

e.

None of the above

## Question number: 438

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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

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