AIIMS Physics: Questions 361 - 365 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: 361

» Oscillations and Waves » Speed of a Wave

MCQ▾

Question

A tuning fork vibrating at 250 Hz produces a sound wave which travels in air at a speed 330ms . Find the distance travelled by sound during the time the fork makes 70 vibrations.

Choices

Choice (4) Response

a.

65.5 m

b.

70 m

c.

92.4 m

d.

82.6 m

Question number: 362

» Kinetic Theory of Gases » Kinetic Energy and Temperature

MCQ▾

Question

The mean translation kinetic energy of an oxygen molecule at 7 is –

(Avogadro number N=6.03×1023permole and R=8.3JK1mol1 )

Choices

Choice (4) Response

a.

11.56×1023J

b.

11.56×1021J

c.

5.8×1023J

d.

5.8×1021J

Question number: 363

» Magnetic Effects of Current and Magnetism » Biot - Savart Law

MCQ▾

Question

The earth’s magnetic field at a given point is 0.4×105Wbm2 . This field is to be annulled by magnetic induction at the center of a circular conducting loop of radius 8.0 cm. The current required to be flown in the loop is nearly:

Choices

Choice (4) Response

a.

50 A

b.

0.5 A

c.

0.25 A

d.

5 A

Question number: 364

» Ray Optics » Resolving Power of Microscopes and Astronomical Telescopes

MCQ▾

Question

A telescope has an objective lens of focal length 100 cm and an eye piece with focal length 5cm. If this telescope is used to see a 30 meter tall building at a distance of 1km, what is the height of the image of the building formed by the objective lens –

Choices

Choice (4) Response

a.

27 cm

b.

3 cm

c.

1 cm

d.

9 cm

Question number: 365

» Properties of Solids & Liquids » Viscosity

MCQ▾

Question

Calculate the volume of water flowing in 15 minutes through a horizontal tube of 0.4 cm diameter, 75 cm long. The pressure head across the ends of the tube is 30 cm of water column. Coefficient of viscosity of water is 9×104 S. I. units g=10ms2 .

Choices

Choice (4) Response

a.

14.1×104m3

b.

15.5×103m3

c.

25.1×103m3

d.

32.4×104m3

Sign In