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science CH 15

Total questions: 15

Worksheet time: 3mins

Name
Class
Date
1.

THE LIGHT IS TRAVELLED IN A STRAIGHT LINE IT IS KNOWN AS

a)

REFLECTION OF LIGHT

b)

RECTILINEAR PROPOGATION OF LIGHT

c)

REFRACTION OF LIGHT

d)

REGULAR REFLECTION OF LIGHT

2.

THE BOUNCING BACK OF LIGHT IS CALLED

a)

REFLECTION OF LIGHT

b)

RECTILINEAR PROPAGATION OF LIGHT

c)

REFRACTION OF LIGHT

d)

REGULAR REFLECTION OF LIGHT

3.

THE REFLECTION OF LIGHT IN THE SMOOTH OR SHINY SUBSTANCE CALLED

a)

REFLECTION OF LIGHT

b)

RECTILINEAR PROPAGATION OF LIGHT

c)

REFRACTION OF LIGHT

d)

REGULAR REFLECTION OF LIGHT

4.

WHEN THE LIGHT TRAVELS IN A ONE TRANSPARENT MEDIUM TO ANOTHER CALLED

a)

REFLECTION OF LIGHT

b)

RECTILINEAR PROPAGATION OF LIGHT

c)

REFRACTION OF LIGHT

d)

REGULAR REFLECTION OF LIGHT

5.

WHEN THE LIGHT TRAVELS IN ROUGH AND DULL SURFACE CALLED

a)

REFLECTION OF LIGHT

b)

RECTILINEAR PROPAGATION OF LIGHT

c)

IRREGULAR REFLECTION OF LIGHT

d)

REGULAR REFLECTION OF LIGHT

6.

THE RAY OF LIGHT THAT FALLS ON THE SURFACE OF THE REFLECTING MATERIAL OR MIRROR IS THE

a)

INCIDENT RAY

b)

REFLECTED RAY

c)

POINT OF INCIDENCE

d)

ANGLE OF INCIDENCE

7.

THE RAY OF LIGHT IS SENT BACK FROM MIRROR IS CALLED

a)

INCIDENT RAY

b)

REFLECTED RAY

c)

POINT OF INCIDENCE

d)

ANGLE OF INCIDENT

8.

THE POINT WHERE THE LIGHT STRIKES OR REFLECT CALLED

a)

INCIDENT RAY

b)

REFLECTED RAY

c)

POINT OF INCIDENCE

d)

ANGLE OF INCIDENT

9.

THE ANGLE OF REFLECTION IS ALWAYS EQUAL TO

a)

INCIDENT RAY

b)

REFLECTED RAY

c)

POINT OF INCIDENCE

d)

ANGLE OF INCIDENT

10.

THE LENSE THAT THIN IN CENTRE AND THICK AT HIS CORNERS CALLED

a)

CONVEX MIRROR

b)

CONCAVE LENSE

c)

CONVEX LENSE

d)

CONCAVE MIRROR

11.

THE LENSE THAT THICK IN CENTRE AND THIN AT HIS CORNERS CALLED

a)

CONVEX MIRROR

b)

CONCAVE LENSE

c)

CONVEX LENSE

d)

CONCAVE MIRROR

12.

THE MIRROR THAT USED TO MAGNIFIED OBJECTS ARE CALLED

a)

CONVEX MIRROR

b)

CONCAVE LENSE

c)

CONVEX LENSE

d)

CONCAVE MIRROR

13.

THE FOCUS OF A REAL AND INVERTED IMAGE IN HUMAN EYE IS ON THE

a)

RETINA

b)

CORNEA

c)

PUPIL

d)

IRIS

14.

VIBGYOR IS A COMBINATION OF

a)

5 COLOURS

b)

6 COLOURS

c)

7 COLOURS

d)

8 COLOURS

15.

WHEN WE PAINT A DISC WITH SEVEN COLOURS (VIBGYOR), AND ROTATE IT ON A HIGH SPEED FORMS WHICH COLOR

a)

GREEN

b)

BLACK

c)

BLUE

d)

WHITE