KVPY (Kishore Vaigyanik Protsahan Yojana) Stream SB-SX (Class 12 & 1st Year B.Sc.) Physics: Questions 255 - 257 of 268

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Question number: 255

» Physics and Measurement » Dimensional Analysis and Its Applications

Appeared in Year: 2016

MCQ▾

Question

Physical processes are sometimes described visually by lines. Only the following can cross:

Choices

Choice (4) Response

a.

Rays in geometrical optics

b.

Lines of force in electrostatics

c.

Streamlines in fluid flow

d.

Lines of force in magnetism

Question number: 256

» Magnetic Effects of Current and Magnetism » Para, Dia and Ferro-Magnetic Substances

Appeared in Year: 2016

MCQ▾

Question

A metallic sphere is kept in between two oppositely charged plates. The most appropriate representation of the field lines is –

Choices

Choice (4) Response

a.

A metallic sphere is kept between two plates : Choice A

A Metallic Sphere Is Kept Between Two Plates: Choice A

Figure shows a metallic sphere is kept between two oppositely charged plates.

b.

A metallic sphere is kept between two plates : Choice B

A Metallic Sphere Is Kept Between Two Plates: Choice B

Figure shows a metallic sphere is kept between two oppositely charged plates.

c.

A metallic sphere is kept between two plates : Choice C

A Metallic Sphere Is Kept Between Two Plates: Choice C

Figure shows a metallic sphere is kept between two oppositely charged plates.

d.

A metallic sphere is kept between two plates : Choice D

A Metallic Sphere Is Kept Between Two Plates: Choice D

Figure shows a metallic sphere is kept between two oppositely charged plates.

Question number: 257

» Kinetic Theory of Gases » Mean Free Path

Appeared in Year: 2016

MCQ▾

Question

A container is divided into two equal part and by a partition with a small hole of diameter . The two partitions are filled with same ideal gas, but held at temperatures and by connecting to heat reservoirs. Let and be the mean free paths of the gas particles in the two parts such that and . Then is –

Choices

Choice (4) Response

a.

0.5

b.

0.25

c.

0.7

d.

1.0

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