Question
The radius of a wavefront as the waves propagate:
✓
Answer
- Increases
As the waves propagates, it goes on creating secondary sources of light, resulting in increase in its radius.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
In Young's experiment, one slit is covered with a blue filter and the other (slit) with a yellow filter. Then the interference pattern(a) Will be blue(b) Will be yellow(c) Will be green(d) Will not be formed
A silver voltameter of resistance 2 ohm and a 3 ohm resistor are connected in series across a cell. If a resistance of 2 ohm is connected in parallel with the voltameter, then the rate of deposition of silver(a) Decreases by 25%(b) Increases by 25%(c) Increases by 37.5%(d) Decreases by 37.5%
Charge motion within the Gaussian surface gives changing physical quantity:
The wavelength of Lyman series is
At any instant the ratio of the amount of radioactive substances is 2 : 1. If their half lives be respectively 12 and 16 hours, then after two days, what will be the ratio of the substances(a) 1 : 1(b) 2 : 1(c) 1 : 2(d) 1 : 4
The nature of binding for a crystal with alternate and evenly spaced positive and negative ions is(a) Covalent(b) Metallic(c) Dipolar(d) Ionic
In the given figure, which of the diodes are forward biased ?
1.
2.
3. 
4. 
5.
1.
2.3. 4. 5.If the wavelength of red light in air is $7500 A,$ then the frequency of light in air is.
→Quantity that is not affected by magnetic field is:
Two identical bar magnets are placed on above the other such that they are mutually perpendicular and bisect each other. The time period of this combination in a horizontal magnetic field is $T.$ The time period of each magnet in the same field is
→