NEET Physics: Questions 1012 - 1015 of 2099
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Question number: 1012
Question number: 1013
A plane mirror reflecting a ray of incident light is rotated through an angle θ about an axis through the point of incidence in the plane of the mirror perpendicular to the plane of incidence, then
(1) The reflected ray rotates through an angle 2θ
(2) The incident ray is fixed
(3) The reflected ray does not rotate
(4) The reflected ray rotates through an angle 0
Select the correct answers and mark it according to the following codes:
2 and 4 are correct
1 and 3 are correct
1, 2 and 3 are correct
1 and 2 are correct
Question number: 1014
An alternating current is more dangerous than the direct steady current.
The frequency of the alternating current is injurious the human body.
|a.||Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ|
|b.||Ꭺ is true but Ꭱ is false|
|c.||Both Ꭺ and Ꭱ are false|
|d.||Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ|