Why two layers of cloth of equal thickness provide warmer coverin… - Vidyadip

Question

Why two layers of cloth of equal thickness provide warmer covering than a single layer of cloth of double thickness?

✓

Answer

This is because the air enclosed between the two layers of cloth acts as a good heat insulator.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "1 Marks Question" from Thermal Properties of Matter→Thermal Properties of Matter — all question types→Physics STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

For the harmonic travelling wave $\text{y}=2\cos2\pi(10\text{t}-0.0080\text{x}+3.5)$ where x and y are in cm and t is second. What is the phase difference between the oscillatory motion at two points separated by a distance of:$\frac{3\lambda}{4}$(at a given instant of time)

What is the average friction force when a person has a usual 1km walk?

The speed of light is $299,792,458\ m/s.$

With respect to the earth.
With respect to the sun.
With respect to a train moving on the earth.
With respect to a spaceship going in outer space.

List one difference and one similarity between gravitational and inertial mass.

Do $\mathring{\text{A}}$ and AU stand for same length?

What causes the rolling sound of thunder?

If all the particle of a system lie in a cube, is it neccesary that the centre of mass be in the cube?

A body is acted upon by a number of external forces. Can it remain at rest?

In a real gas the internal energy depends on temperature and also on volume. The energy increases when the gas expands isothermally. Looking into the derivation of $C_p-C_v=R$, find whether $C_p-C_v$ will be more than $R$, less than $R$ or equal to $R$ for a real gas.

When white light travels through glass the refractive: index $\mu=\Big(\frac{\text{Velocity of light in air}}{\text{Velocity of light in glass}}\Big)$ is found to vary with wavelength as $\mu=\text{A}+\frac{\text{B}}{\lambda^2}$ where A and B are constants. Using the principle of homogeneity of dimensions, determine the SI unit in which A and B must be expressed.