Energy
Energy: Overview
This topic covers concepts, such as, Mechanical Energy, Chemical Energy, Characteristic of Sound & Facts of Sound etc.
Important Questions on Energy
Which device is used to convert mechanical energy into electrical energy.
A neutron can cause fission in which of the following?
In a nuclear reaction, there is the conservation of which of the following?
Which of the following includes example of electrical energy?
Electrical energy can cause by the movement of most common current carrier?
Which of the following surface concentrate the reflected sound ?
Sound energy can move forwards in the form of ?
The rate at which sound energy depends upon?
Which of the following property comprise by Sound Energy?
Which of the following light energy used in TV remote?
Which of the following particle produces by light?
A lot of Heat energy and Light energy is given off by which of the following?
Due to _____, the stars seem to be higher in the sky than they actually are?
Which of the following statements is/are correct regarding image formation in the plane mirror?
A. Image is erect.
B. Image is real.
C. Image is laterally inverted.
D. The image size is the same as that of an object.
Manjula is observing her image in a plane mirror. The distance between herself and the mirror is . She moves towards the mirror. The distance between herself and her image now is _____.
When a light ray incidents normal to the surface, then what is the angle of refraction?
