MCQ
Snow is more heat insulating than ice, because
  • Air is filled in porous of snow
  • B
    Ice is more bad conductor than snow
  • C
    Air is filled in porous of ice
  • D
    Density of ice is more

Answer

Correct option: A.
Air is filled in porous of snow
a
(a)Air is poor conductor of heat.

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

Similar questions

If velocity of flow is $4 \,m / s$, then velocity head is .........$m$
If the time period of a two meter long simple pendulum is $2\, s$, the acceleration due to gravity at the place where pendulum is executing $S.H.M.$ is
A man runs at a speed of 4.0m/ s to overtake a standing bus. When he is 6.0m behind the door (at t = 0), then bus moves forward and continues with a constant acceleration of 1.2m/ s2. The man shall access the door at time t equal to:
The graph shows the variation with time $t$ of velocity $v$ of an object moving along a straight line. $a-t$ graph will be
If the time of flight of a bullet over a horizontal range $R$ is $T$, then the angle of projection with horizontal is ......
A rigid body rotates about a fixed axis with variable angular velocity equal to $\alpha -\beta t$, where $t$ is time and $\alpha \,,\, \beta $ are constants. The angle (in radian) through which it rotates before its stops
A car is standing $200\, m$ behind a bus, which is also at rest. The two start moving at the same instant but with different forward accelerations. The bus has acceleration $2\,m/s^2$ and the car has acceleration $4\, m/s^2$ . The car will catch up with the bus after a time of
The temperature of a piece of iron is ${27^o}C$ and it is radiating energy at the rate of $Q\;kW{m^{ - 2}}$. If its temperature is raised to ${151^o}C$, the rate of radiation of energy will become approximately ....... $Q\,kW\,{m^{ - 2}}$
There are two planets. The ratio of radius of the two planets is K but ratio of acceleration due to gravity of both planets is g. What will be the ratio of their escape velocity
To construct a barometer, a tube of length 1m is filled completely with mercury and is inverted in a mercury cup. The barometer reading on a particular day is 76cm. Suppose a 1m tube is filled with mercury up to 76cm and then closed by a cork. It is inverted in a mercury cup and the cork is removed. The height of mercury column in the tube over the surface in the cup will be.
  1. zero.
  2. 76cm.
  3. > 76cm.
  4. < 76cm.