Download App

Thermal Properties of Matter — Physics STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 SciencePhysicsThermal Properties of Matter2 Marks
Question
Explain why:
The earth without its atmosphere would be inhospitably cold.
✓

Answer

Without its atmosphere, earth would be inhospitably cold. In the absence of atmospheric gases, no extra heat will be trapped. All the heat would be radiated back from earth’s surface.

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 "2 Marks Questions" from Thermal Properties of Matter→Thermal Properties of Matter — all question types→Physics STD 11 Science question papers→Rajasthan Board STD 11 Science question papers→Rajasthan Board question paper generator→

Similar questions

Explain why
Hydrostatic pressure is a scalar quantity even though pressure is force divided by area.
→
What is an isothermal process? Also give essential conditions for an isothermal process to take place.
→
A mass M is broken into two parts, m and ( M - m ). How is m related to M so that the gravitational force between two parts is maximum?
→
Does a body at 20°C radiate in a room, where the room temperature is 30°C? If yes, why does its temperature not fall further?
→
Why can't the efficiency of an internal combustion engine be raised beyond a limit?
→
To maintain a rotor at a uniform angular speed of $200 rad s ^{-1}$, an engine needs to transmit a torque of 180 N m . What is the power required by the engine? (Note : Uniform angular velocity in the absence of friction implies zero torque. In practice, applied torque is needed to counter frictional torque). Assume that the engine is $10 \%$ efficient.
→
Explain why cooking is faster in a pressure cooker.
→
The bottom of a ship is made heavy. Why?
→
The drift current in a p-n junction is $20.0\mu\text{A}.$ Estimate the number of electrons crossing a cross-section per second in the depletion region.
→
A particle moves from a point $\vec{\text{r}}_1=(2\text{m})\vec{\text{i}}+(3\text{m})\vec{\text{j}}$ to another point $\vec{\text{r}}_2=(3\text{m})\vec{\text{i}}+(2\text{m})\vec{\text{j}}$ during which a certain force $\vec{\text{F}}=(5\text{N})\vec{\text{i}}+(5\text{N})\vec{\text{j}}$ acts on it. Find the work done by the force on the particle during the displacement.
→