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

Which of the following shows the correct relationship between the pressure and density of an ideal gas at constant temperature?

The following graph represents the pressure versus number density for an ideal gas at two different temperatures T₁ and T₂. The graph implies

What is the microscopic origin of pressure?

A gas is at temperature 80°C and pressure 5 × 10⁻¹⁰ Nm⁻². What is the number of molecules per m³ if Boltzmann’s constant is 1.38 × 10⁻²³ J K⁻¹

If 10²⁰ oxygen molecules per second strike 4 cm² of wall at an angle of 30° with the normal when moving at a speed of 2 × 10³ ms⁻¹, find the pressure exerted on the wall. (mass of one oxygen atom = 2.67 × 10⁻²⁶ kg)

Estimate the total number of air molecules in a room of a capacity of 25 m³ at a temperature of 27°C.

In a simple harmonic oscillation, the acceleration against displacement for one complete oscillation will be __________.

A particle executing SHM crosses points A and B with the same velocity. Having taken 3 s in passing from A to B, it returns to B after another 3 s. The time period is ____________.

The length of a second’s pendulum on the surface of the Earth is 0.9 m. The length of the same pendulum on the surface of planet X such that the acceleration of the planet X is n times greater than the Earth is

A simple pendulum is suspended from the roof of a school bus which moves in a horizontal direction with an acceleration a, then the time period is

A simple pendulum has a time period T₁. When its point of suspension is moved vertically upwards according to as y = kt², where y is the vertical distance covered and k = 1 ms⁻², its time period becomes T₂. Then, T `"T"_1^2/"T"_2^2` is (g = 10 ms⁻²)

If the inertial mass and gravitational mass of the simple pendulum of length l are not equal, then the time period of the simple pendulum is

Define the time period of simple harmonic motion.

Define the frequency of simple harmonic motion.

What is an epoch?

Write short notes on two springs connected in series.

Write short notes on two springs connected in parallel.

State the laws of the simple pendulum?

What is meant by simple harmonic oscillation? Give examples and explain why every simple harmonic motion is a periodic motion whereas the converse need not be true.

Describe Simple Harmonic Motion as a projection of uniform circular motion.