Home
Class 11
PHYSICS
Assertion : According to Newton's law, g...

Assertion : According to Newton's law, good conductors of elctricity are also conductors of heat.
Reason : At a given temperature , `e_(lambda) prop a_(lambda)` for any body.

A

If both Assertion and Reason are true and the Reason is correct explanation of the Assertion.

B

If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

C

If Assertion is true, but the Reason is false.

D

If Assertion is false but the Reason is true.

Text Solution

Verified by Experts

The correct Answer is:
D
This law was given by Kirchhoff.
Promotional Banner

Topper's Solved these Questions

  • CALORIMETRY & HEAT TRANSFER

    DC PANDEY|Exercise Level 1 Objective|11 Videos

  • CALORIMETRY & HEAT TRANSFER

    DC PANDEY|Exercise Level 1 Subjective|13 Videos

  • CALORIMETRY & HEAT TRANSFER

    DC PANDEY|Exercise Exercise 22.2|7 Videos

  • BASIC MATHEMATICS

    DC PANDEY|Exercise Exercise|13 Videos

  • CALORIMETRY AND HEAT TRANSFER

    DC PANDEY|Exercise Medical entrance s gallery|38 Videos

Similar Questions

Explore conceptually related problems

Usually a good conductor of heat is a good conductor of electricity also. Give reason.

Assertion : Good conductors of electricity are also good conductors of heat due to large number of free electrons. Reason : It is easy to conduct heat from free electrons.

Assertion : Woollen clothes keep the body warm in winter Reason : Air is a bad conductor of heat.

Assertion: According to Newton's law of cooling, the rate of loss of heat, -dQ//dt of the body is directly proportional to the difference of temperature. Reason :This law holds for all type of temperature differences.

Assertion (A) : Graphite si a good conductore of heat and electriciy . Reason (R) : Frre electron are sjperaldout in the structrue of graphite .

Assertion (A) Graphite is a good conductor of heat and electicity. Reason (R ) Graphite has all the electrons firmly held together in C-Csigma bonds.

How many of the following statements are correct regarding allotropes of carbon: (a) Graphite is not a good conductor of electicity in perpendicular direction of layers at ordinary temperatures. (b) Coke is the impure form of carbon. ( c) Anthracite is the purest form of carbon. (d) Buckminister fullerence contains 12 five membered rings and 20 six-membered rings. (e) Diamond is a good conductor of heat. (f) Graphite is diamagnetic in nature. (g) Graphite is thermodynamically more stable than diamond