Question

solve
Ray of light incident at right angle on glass moveTowards Normal
At 180 degrees to normal
Away from normal
Along normal​

Answer 1

Answer:

4) Along normal

Explanation:

ANY TYPE OF SMOOTH REFLECTING SURFACE IS CALLED A MIRROR.

A MIRROR SYSTEM EITHER SPHERICAL OR PLANE HAVE 3 TYPES OF IDENTICAL RAYS.

THE RAYS ARE.

1. INCIDENT RAY- IT'S THE RAY WHICH HITS THE MIRROR OR WE CAN SAY WHICH IS INCIDENT TOWARDS THE MIRROR.
2. REFLECTED RAY- IT'S THE RAY WHICH IS REFLECTED BY THE MIRROR.
3. NORMAL RAY - IT IS THE RAY WHICH IS PERPENDICULAR TO SURFACE OF MIRROR OR IT MAKES ANGLE OF 90° WITH THE MIRROR.

INCIDENT AND REFLECTED RAYS'S ANGLES ARE MEASURES FROM THIS RAY. ______________________________________

NOW IF A LIGHT RAY IS INCIDENT ON A MIRROR WITH RIGHT ANGLE THIS MEANS IT BECOMES PERPENDICULAR TO SURFACE OF MIRROR, ALSO NORMAL RAY IS ALSO PERPENDICULAR TO MIRROR.

SO WE KNOW THAT THE INCIDENT RAY REFLECTS WITH AN ANGLE EQUAL TO ANGLE BETWEEN INCIDENT RAY AND NORMAL.

IN THIS CASE ANGLE BETWEEN INCIDENT RAY AND NORMAL RAY IS 0( ZERO).

(SINCE- INCIDENT RAY HITS NORMAL)

THEREFORE THE INCIDENT RAY WILL REFLECT BACK WITH MAKING A 0° ANGLE BETWEEN ITSELF AND NORMAL.

THIS MEANS THAT THE REFLECTED RAY WILL MOVE ALONG THE NORMAL.

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BY SCIVIBHANSHU

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