HSC Science (General) 11th Standard - Maharashtra State Board Question Bank Solutions for Physics

Choose the correct answer.

Select the wrong statement about the centre of mass:

Choose the correct answer.

For which of the following objects will the center of mass not be at their geometrical center?

(I) An egg
(II) a cylindrical box full of rice
(III) a cubical box containing assorted sweets

The value of acceleration due to gravity is maximum at ________.

Choose the correct option.

The weight of a particle at the center of the Earth is _______.

The gravitational potential due to the Earth is minimum at _______.

Choose the correct answer.

Change in dimensions is known as ______.

Choose the correct answer.

The point on the stress-strain curve at which strain begins to increase even without increase in stress is called ________

Choose the correct answer.

Strain energy of a stretched wire is 18 × 10^-3 J and strain energy per unit volume of the same wire and same cross-section is 6×10^-3 J/m³. Its volume will be _________.

Choose the correct answer.

________ is the property of a material which enables it to resist plastic deformation.

Choose the correct answer.

The ability of a material to resist fracturing when force is applied to it, is called ______.

Answer in one sentence.

What do you mean by deformation?

A concave mirror of curvature 40 cm, used for shaving purposes produces image of double size as that of the object. Object distance must be ______.

Answer the following question.

As per recent development, what is the nature of light? Wave optics and particle nature of light are used to explain which phenomena of light respectively?

Choose the correct option.

Range of temperature in a clinical thermometer, which measures the temperature of the human body, is

Choose the correct option.

A glass bottle completely filled with water is kept in the freezer. Why does it crack?

Choose the correct option.

If two temperatures differ by 25° C on Celsius scale, the difference in temperature on Fahrenheit scale is

Choose the correct option.

If α, β and γ are coefficients of linear, area l and volume expansion of a solid then

Choose the correct option.

Consider the following statements-

(I) The coefficient of linear expansion has dimension K^-1.

(II) The coefficient of volume expansion has dimension K^-1.

Choose the correct option.

Water falls from a hight of 200 m. What is the difference in temperature between the water at the top and bottom of a waterfall given that the specific heat of water is 4200 J kg^-1 °C-1?

Choose the correct alternatives.

A sound carried by air from a sitar to a listener is a wave of the following type.