According to Newton's law of cooling, the heat energy lost per unit area of a body depends on the

I. Surface area

II. Nature of the surface

III. Temperature of the surface

IV. Excess temperature over the surroundings

Similar Questions

The magnetic force on a charged particle moving with velocity v is...

A hydraulic press has a large circular piston of radius 0.8m and a circular plunger of radius 0.2m. ...

At what frequency would a capacitor of 2.5μF used in radio circuit have a resistance of 250Ω...

A man 1.5m tall is standing 3m in front of a pinhole camera whose distance between the hole and the ...

The instantaneous value of the induced e.m.f as a function of time is ε = εo sin ωt where εo is ...

The speed of sound in air is 330ms-1. How far from the centre of a storm is an observer who hears a ...

Which of the following devices is used to compare the relative magnitudes of charges on two given bo...

200g of water at 90°C is mixed with 100g of water at 30°C. What is the final temperature?...

In a uniform electric field, the magnitude of the force on a charge of 0.2 C is 4N. Calculate the el...

Radio carrier waves are generated by causing electrons to oscillate rapidly in...