# NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 2084 - 2088 of 2320

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## Question number: 2084

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Appeared in Year: 2016

MCQ▾

### Question

Electrons of mass with De – Broglie wavelength fall on the target in a X – ray tube. The cutoff wavelength of the emitted X – ray is:

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 2085

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Appeared in Year: 2016

MCQ▾

### Question

A filament bulb is to be used in a main supply. When a resistance is connected in series, it works perfectly and the bulb consumes . The value of is –

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 2086

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Appeared in Year: 2016

MCQ▾

### Question

A satellite of mass is orbiting the earth (of radius R) at a height from its surface. The total energy of the satellite in terms of , the value of acceleration due to gravity at the earth’s surface, is –

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 2087

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Appeared in Year: 2016

MCQ▾

### Question

Three liquids of densities and (with ), having the same value of surface tension T, rise to the same height in three identical capillaries. The angle of contact and obey –

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 2088

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Appeared in Year: 2016

MCQ▾

### Question

For CE transistor amplifier, the audio signal voltage across the collector resistance of is . If the current amplification factor of the transistor is 100 and the base resistance is , then the input signal voltage is –

### Choices

Choice (4)Response

a.

b.

c.

20mV

d.

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