NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 2057 - 2062 of 2320

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Question number: 2057

» Atoms and Nuclei » Radioactivity

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Appeared in Year: 2016

MCQ▾

Question

The half – life of a radioactive substance is . The time (in minutes) taken between 40 % decay and 85 % decay of the same radioactive substance is:

Choices

Choice (4)Response

a.

30

b.

45

c.

60

d.

15

Question number: 2058

» Wave Optics » Interference

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Appeared in Year: 2016

MCQ▾

Question

The interference pattern is obtained with two coherent light source of intensity ratio . In the interference pattern, the ratio will be –

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 2059

» Ray Optics » Lens Maker's Formula and Lens Formula

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Appeared in Year: 2016

MCQ▾

Question

Two identical glass equiconvex lenses of focal length each are kept in contact. The space between that two lenses in filled with water . The focal length of the combination is –

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 2060

» Electronic Devices » Logic Gates (Or, and, NOT, NAND and Nor)

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Appeared in Year: 2016

MCQ▾

Question

What is the output in the following circuit, when all the three inputs A, B, C are first and then ?

The circuit consists of two gates

The Circuit Consists of Two Gates

In figure the circuit diagram is shown. P and Q are two gates, A, B, C are three inputs and Y is output of circuit.

Choices

Choice (4)Response

a.

b.

0,0

c.

1,0

d.

Question number: 2061

» Rotational Motion » Rotational Kinetic Energy

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Appeared in Year: 2016

MCQ▾

Question

Two rotating bodies A and B of masses and with moments of inertia and , have equal kinetic energy of rotation. If and be their angular momenta respectively, then –

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 2062

» Thermodynamics » Concept of Temperature

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Appeared in Year: 2016

MCQ▾

Question

The temperature inside a refrigerator is and the room temperature is . The amount of heat deliver to the room for each joule of electrical energy consumed ideally will be –

Choices

Choice (4)Response

a.

b.

c.

d.

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