2013 · Q70
Statement I The mirror used in searchlight is parabolic. Statement II All the rays coming from the source at the focus of a parabolic mirror are reflected as an intense parallel beam.
general-sciencephysics
- ABoth the statements are individually true and Statement II is the correct explanation of Statement I
- BBoth the statements are individually true but Statement II is not the correct explanation of Statement I
- CStatement I is true but Statement II is false
- DStatement I is false but Statement II is true
Explanation
Searchlights use parabolic mirrors because rays from the focus reflect as a parallel beam - both statements are true and II explains I.