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AIIMS (All India Institute of Medical Sciences) Physics: Questions 426 - 431 of 500

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Question 426

Question

MCQ▾

A string in a musical instrument is 60 cm long and its fundamental frequency is 800 Hz. If a frequency of 1200 Hz is to be produced, then required length of string is –

Choices

Choice (4)Response

a.

70 cm

b.

40 cm

c.

50 cm

d.

65 cm

Question 427

Question

MCQ▾

Which of the following cannot be deflected by magnetic field?

Choices

Choice (4)Response

a.

b.

c.

d.

Question 428

Appeared in Year: 1999

Question

MCQ▾

Light of wavelength in Photoelectric effect gives electron of maximum Kinetic Energy . If wavelength change to then maximum kinetic energy of emitted electrons will be – [AIPMT]

Choices

Choice (4)Response

a.

Greater than 0.5 eV

b.

0.5 eV

c.

Photoelectric effect does not occurs

d.

Less than 0.5 eV

Question 429

Scalar and Vector Products

Question

MCQ▾

If , then find the angle between P and Q .

Choices

Choice (4)Response

a.

b.

c.

d.

Question 430

Appeared in Year: 1998

Question

MCQ▾

Half – life period of two radioactive substance are are 40 minute and 20 minute respectively, then after 80 minute ratio of the remaining nuclei will be – (Initially both have equal active nuclei) [AIPMT]

Choices

Choice (4)Response

a.

4: 1

b.

8: 1

c.

16: 1

d.

1: 2

Question 431

Appeared in Year: 1993

Question

MCQ▾

The wavelength of a photon is . What is the frequency of photon: [AIPMT]

Choices

Choice (4)Response

a.

b.

c.

d.

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