- ASir Isaac Newton
- BMichelson
- CFraunhoffer
- DThomas Young
Explanation:
Thomas Young demonstrated the phenomenon of interference in water waves.
In 1801, he presented a famous paper to the Royal Society entitled "On the Theory of Light and Colours" which described various interference phenomena, and in 1803 he performed his famous double-slit experiment.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Consider the following two statements
A. Energy spectrum of a-particles emitted in radioactive decay is discrete
B. Energy spectrum of b-particles emitted in radioactive decay is continuous
|
(a) Only A is correct |
(b) Only B is correct |
|
(c) A is correct but B is wrong |
(d) Both A and B are correct |
Refractive index of material is equal to tangent of polarising angle. It is called
|
(a) Brewster’s law |
(b) Lambert’s law |
(c) Malus’s law |
(d) Bragg’s law |

The line on the earth's surface joining the points where the field is horizontal is
| (a) Magnetic meridian | (b) Magnetic axis | (c) Magnetic line | (d) Magnetic equator |
A circular disc of which 2/3 part is coated with yellow and 1/3 part is with blue. It is rotated about its central axis with high velocity, then it will be seen as
|
(a) Green |
(b) Brown |
(c) White |
(d) Violet |
The phenomenon of light passing through the object is called: