MCQ
The source of stellar energy is:
  • A
    Nuclear fission
  • B
    Nuclear fusion
  • C
    Nuclear fission & fusion
  • D
    Nuclear decay

Answer

  1. Nuclear fusion

Explanation:

Stellar and solar energy is due to fusion reactions. So, source of stellar energy is Nuclear fusion.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

By Huygen's wave theory of light, we cannot explain the phenomenon of

(a) Interference

(b) Diffraction

(c) Photoelectric effect

(d) Polarisation

What is immaterial for an electric fuse wire 

(a) Specific resistance of the wire

(b) Radius of the wire

(c) Length of the wire

(d) Current flowing through the wire

A wire 100 cm long and 2.0 mm diameter has a resistance of 0.7 ohm, the electrical resistivity of the material is

(a) 4.4  

(b) 2.2  

(c) 1.1  

(d) 0.22  

A convex lens is used to form real image of an object on a screen. It is observed that even when the positions of the object and that screen are fixed there are two positions of the lens to form real images.  If the heights of the images are 4 cm and 9 cm respectively, the height of the object is

(a) 2.25 cm

(b) 6.00 cm

(c) 6.50 cm

(d) 36.00 cm

Donor type impurity is found in

(a) Trivalent elements

(b) Pentavalent elements

(c) In both the above

(d) None of these

In Bohr model of hydrogen atom, let P.E. represents potential energy and T.E. represents the total energy. In going to a higher level: