Light - Study Mode
[#86] When an object is placed outside the center of curvature of a concave mirror, the image will form:
Correct Answer
(D) between F and C
[#87] Given below are two statements, one labelled as Assertion (A) and other labelled as Reason (R). Assertion (A): A diamond sparkles more than a glass imitation cut to the same shape. Reason (R): The refractive index of diamond is less than that of glass. In the context of the above two statements, which one of the following is correct?
Correct Answer
(C) (A) is true, but (R) is false
[#88] The time taken to reach the Sunlight up to the surface of Earth is approximately
Correct Answer
(C) 8.S minutes
[#89] What will be the focal length when human eye lens becomes thin?
Correct Answer
(A) Increases
[#90] In the visible spectrum, the colour having the shortest wavelength is
Correct Answer
(D) Violet