MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Inter-Conversion of Temperature in Different Scales

In pyrometer ...

Question

In pyrometer , temperature measured is proportional to $- ------- -$ energy emitted by the body

A

light

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

electric

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

radiation

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

D

All the above

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A radiation
Stefan- Boltzann law, $j^{⋆} = ε σ T^{4}$ connects temperature T with thermal radiation or irradiance $j^{⋆}$ .
Thus measuring the irradiance with pyrometer yields the temperature of the body.

Suggest Corrections

thumbs-up

0

Similar questions

Q. A black body is at temperature

300 K

. It emits energy at a rate, which is proportional to

Q. A black body is at a temperature of

500

K. It emits its energy at a rate which is proportional to :

Q. Identify the correct statements:
i) Barometer is the instrument used to record pressure at different locations.
ii) Hypsometer is used to measure the absolute height above sea level
iii) Pyrometer is used to measure very high temperatures
iv) Cryometer is used to measure very low temperatures

Q. The energy emitted by a black body at

727^{o} C

is E. If the temperature of the body is increased by

227^{o} C

, the emitted energy will become

Q. The thermal radiation emitted by a body is proportional to

T^{n}

T

is its absolute temperature. The value of

n

4

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Interconversion_tackle

PHYSICS

Watch in App

explore_more_icon

Explore more

Inter-Conversion of Temperature in Different Scales

Standard VII Physics

Join BYJU'S Learning Program

CrossIcon