Question

Planck's distribution law is valid for __________ bodies.

a.

black

b.

white

c.

coloured

d.

all (a), (b) & (c)

Answer: (c).coloured

Interact with the Community - Share Your Thoughts

Uncertain About the Answer? Seek Clarification Here.

Understand the Explanation? Include it Here.

Q. Planck's distribution law is valid for __________ bodies.

Similar Questions

Explore Relevant Multiple Choice Questions (MCQs)

Q. For hot feed, forward feeding as compared to backward feeding results in __________ economy.

Q. Radiation energy is emitted by all the substances, which are above

Q. Which one gives the monochromatic emissive power for black body radiation ?

Q. For what value of Prandtl number, St = f/2?

Q. In a shell and tube heat exchanger,

Q. Dietus-Boelter equation used for the determination of heat transfer co-efficient is valid

Q. The range of electromagnetic spectrum important in heat transfer by radiation is __________ microns.

Q. Use of transverse baffles in a shell and tube heat exchanger is done to increase the

Q. The actual temperature drop across the heating surface of an evaporator depends on the

Q. Economy of a multiple effect evaporator depends upon the

Q. For the same heat load and mass flow rate in the tube side of a shell and tube heat exchanger, one may use multipass on the tube side, because it

Q. When vaporisation takes place through a blanketting film of gas, the phenomenon is termed as __________ boiling.

Q. Minimum recommended baffle spacing in a shell and tube heat exchanger is about (where, D = shell diameter)

Q. Stefan-Boltzman law which describes the radiation heat transfer states that, it is proportional to (where, t = temperature in °C, T = absolute temperature in ° K )

Q. The Nusselt number for fully developed (both thermally and hydrodynamically) laminar flow through a circular pipe, where the wall heat flux is constant, is

Q. Among liquids, water has a comparatively high value of thermal conductivity, due to its

Q. Reynold's analogy states that (where, St = Stanton number f = friction factor)

Q. For evaporation of viscous solution in a multiple effect evaporator, the prefered feeding scheme is

Q. The sum of reflectivity and absorptivity for an opaque body is equal to

Q. The film thickness for laminar film condensation on vertical surface __________ from top to bottom.

Recommended Subjects

Are you eager to expand your knowledge beyond Basic Chemical Engineering? We've handpicked a range of related categories that you might find intriguing.

Click on the categories below to discover a wealth of MCQs and enrich your understanding of various subjects. Happy exploring!