HSC Science Class 11 - Tamil Nadu Board of Secondary Education Question Bank Solutions for Physics

Describe the construction and working of venturimeter and obtain an equation for the volume of liquid flowing per second through a wider entry of the tube.

The reading of the pressure meter attached with a closed pipe is 5 × 10⁵ Nm⁻². On opening the valve of the pipe, the reading of the pressure meter is 4.5 × 10⁵ Nm⁻². Calculate the speed of the water flowing in the pipe.

An ideal gas is taken from (P_i, V_i) to (P_f, V_f) in three different ways. Identify the process in which the work done on the gas the most.

Define the internal energy of the system.

Are internal energy and heat energy the same? Explain.

Define one calorie.

Did joule converted mechanical energy to heat energy? Explain.

Can we measure the temperature of the object by touching it?

Give the sign convention for Q and W.

Define the quasi-static process.

Give the expression for work done by the gas.

What is a PV diagram?

Explain Joule’s Experiment of the mechanical equivalent of heat.

Derive the expression for the work done in a volume change in a thermodynamic system.

An ideal gas is maintained at constant pressure. If the temperature of an ideal gas increases from 100 K to 10000 K then the rms speed of the gas molecules

Which of the following gases will have the least rms speed at a given temperature?

Why moon has no atmosphere?

Write the expression for rms speed, average speed and most probable speed of a gas molecule.

A person standing between two parallel hills fires a gun and hears the first echo after t₁ sec and the second echo after t₂ sec. The distance between the two hills is:

Briefly explain the difference between traveling waves and standing waves.