HSC Science (Computer Science) इयत्ता ११ वी - Maharashtra State Board Question Bank Solutions

Answer the following question in detail.

State Kepler’s three laws of planetary motion.

Answer in one sentence.

Define elasticity.

Answer in short.

Distinguish between elasticity and plasticity.

Choose the correct option.

Consider the optically denser lenses P, Q, R, and S drawn below. According to the Cartesian sign convention which of these have a positive focal length?

Answer the following question.

Which phenomena can be satisfactorily explained using ray optics?

Answer the following question.

State the assumptions on which ray optics is based.

Answer the following question.

Clearly, state the difference between heat and temperature?

Answer briefly.

Wave motion is doubly periodic. Explain.

Answer briefly.

Define amplitude.

Answer briefly.

Define wavelength of a wave.

Answer briefly.

Draw a wave and indicate points which are

1. in phase
2. out of phase
3. have a phase difference of `pi/2`

Define the relation between velocity, wavelength, and frequency of the wave.

Answer briefly.

Explain what is meant by phase of a wave.

Define progressive wave.

State any four properties of progressive wave.

Solve the following problem.

A certain sound wave in air has a speed 340 m/s and wavelength 1.7 m for this wave, calculate 

1. the frequency
2. the period

Solve the following problem.

A tuning fork of frequency 170 Hz produces sound waves of wavelength 2 m. Calculate the speed of sound.

Sound wave A has period 0.015 s, sound wave B has a period of 0.025 s. Which sound has greater frequency?

Choose the correct option.

Let r be the distance of a point on the axis of a bar magnet from its center. The magnetic field at r is always proportional to

Choose the correct option.

A magnetic needle kept nonparallel to the magnetic field in a nonuniform magnetic field experiences