Planck's distribution law is valid for __________ bodies.

Newton's law of Collision of elastic bodies states that when two moving bodies collide each other, their velocity of separation

A

Is directly proportional to their velocity of approach

B

Is inversely proportional to their velocity of approach

C

Bears a constant ratio to their velocity of approach

D

Is equal to the sum of their velocities of approach

During elastic impact, the relative velocity of the two bodies after impact is __________ the relative velocity of the two bodies before impact.

A

Equal to

B

Equal and opposite to

C

Less than

D

Greater than

The phenomenon of collision of two elastic bodies takes place because bodies

A

Immediately after collision come momentarily to rest

B

Tend to compress each other till they are compressed maximum possible

C

Attempt to regain its original shape due to their elasticities

D

All the above

The ratio of the total emissive power to the absorptivity for all bodies is same at ther-mal equilibrium. This is __________ law.

A

Kirchoffs

B

Planck's

C

Wien's displacement

D

Stefan-Boltzman

President constftutea which of the folloWing bodies for the distribution of resources between Centre and States-

A

Finance Commission

B

Planning Commission

C

Taxation Commission

D

Tariff Commission

In an election between two candidates, one got 55% of the total valid votes. 20% of the votes are invalid. If the total votes are 7500, what is the total number of valid votes the other got?

A

2400

B

2700

C

2500

D

2000

In an election between two candidates, one got 55% of the total valid votes. 20% of the votes were invalid. If the total number of votes was 7500, the number of valid votes that the other candidate got, was -

A

2700

B

2900

C

3000

D

3100

In an election between two candidates, one got 55% of the total valid votes, 20% of the votes were invalid. If the total number of votes was 7500, the number of valid votes that the other candidate got, was:

A

2700

B

2900

C

3000

D

3100

What is the other name of Galileo's law of falling bodies?

A

Law of motion

B

Newton's first law

C

Newton's second law

D

Newton's third law

According to Kirchoff's law, the ratio of emissive power to absorptivity for all bodies is equal to the emissive power of a

A

Grey body

B

Brilliant white polished body

C

Red hot body

D

Black body

Planck's distribution law is valid for __________ bodies.

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