Given below statement is incorrect. Write the correct statement : The repetition of the sound, which is reflected from a high building, is called multiple vibrations.

The repetition of the sound, which is reflected from a high building, is called echo.

Given below statement is incorrect. Write the correct statement :…

Conduction

→

Explain the following :Why are ice blocks wrapped in saw dust of woolen blanket?

→

Plane mirrors can be used for decorative purposes.

→

The leaves appear green when seen in white light. Give a reason.

→

What is the function of the contact adjustment screw in an electric bell?

→

Calculate the speed of an object if it covers $200$ metres in $50$ seconds.

→

Given below stament is incorrect. Write the correct statement :
The amount of space occupied by an object is called its area.

→

Name at least two units in which the volume of liquids is measured.

→

What happens when the heating element made of nichrome in an electric iron is replaced by copper?

→

Give one relevant example for the following transformation of energy:
Electrical energy to mechanical energy.

→