NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1250 - 1253 of 2142

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Question number: 1250

» Wave Optics » Brewster's Law

MCQ▾

Question

A ray of light is incident on the surface of a glass plate at an angle of incidence equal to Brewster’s angle Φ. If μ represents the refractive index of glass with respect to air, then the angle between reflected and refracted rays is,

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1251

» Dual Nature of Matter and Radiation » Einstein's Photoelectric Equation

Assertion-Reason▾

Assertion (Ꭺ)

Photosensitivity of a metal is large if its work function is small.

Reason (Ꭱ)

Work function = hf 0. where f 0 is the threshold frequency.

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are false

b.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

c.

Ꭺ is true but Ꭱ is false

d.

Ꭺ is false but Ꭱ is true

Question number: 1252

» Thermodynamics » Concept of Temperature

MCQ▾

Question

How much work to be done in decreasing the volume of an ideal gas by an amount of 2.4 × 10 -4 m 3 at normal temperature and constant normal pressure of 1 × 10 -5N/ m 2

Choices

Choice (4) Response

a.

24 Joule

b.

25 Joule

c.

28 Joule

d.

27 Joule

Question number: 1253

» Properties of Solids & Liquids » Temperature

Assertion-Reason▾

Assertion (Ꭺ)

Fahrenheit is the smallest unit measuring temperature.

Reason (Ꭱ)

Fahrenheit was the first temperature scale used for measuring temperature.

Choices

Choice (4) Response

a.

Ꭺ is true but Ꭱ is false

b.

Ꭺ is false but Ꭱ is true

c.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

d.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

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