AIIMS Physics: Questions 271 - 275 of 500

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 500 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 350.00 or

Question number: 271

» Oscillations and Waves » Standing Waves in Strings and Organ Pipes

MCQ▾

Question

A standing wave having 4 nodes and 3 antinodes is formed between 2.75 distances then the wavelength is –

Choices

Choice (4) Response

a.

1.38

b.

5.84

c.

2.605

d.

1.83

Question number: 272

» Electrostatics » Capacitors

MCQ▾

Question

Three capacitors of capacitance 2µF,5µFand10µF are connected in series to a voltage source of 200V. The charge on 10µF is –

Choices

Choice (4) Response

a.

50µC

b.

300µC

c.

250µC

d.

150µC

Question number: 273

» Work, Energy and Power » Kinetic Energy

MCQ▾

Question

A bomb of mass 5.0 kg explodes in air into two pieces of masses 2.0 kg and 3.0 kg. The smaller mass goes at a speed of 120ms . The total energy imparted to the two fragments is –

Choices

Choice (4) Response

a.

36 kJ

b.

48 kJ

c.

12 kJ

d.

24 kJ

Question number: 274

» Oscillations and Waves » Displacement Relation for a Progressive Wave

MCQ▾

Question

If equation of a sound wave is y=0.0020sin(70x+275t) then its wavelength will be –

Choices

Choice (4) Response

a.

1 unit

b.

0.09 unit

c.

0.05 unit

d.

0.5 unit

Question number: 275

» Electronic Devices » Junction Transistor

Appeared in Year: 2004

Assertion-Reason▾

Assertion (Ꭺ)

In a transistor the base is made thin.

Reason (Ꭱ)

Thin base makes the transistor stable.

Choices

Choice (4) Response

a.

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

b.

Both Ꭺ and Ꭱ are false

c.

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

d.

Ꭺ is true but Ꭱ is false

Sign In