CBSE Class 7 Science Light: Shadows and Reflections (Class 7 NCERT New) Quiz 5

1. Assertion(A): Moon is non - luminous object. Reason(R): Moon does not emit light on their own.

A A and R are true. R is not the correct explanation of A B A is true and R is false C A is false and R is true D A and R is true and R is the correct explanation of A

2. Assertion(A): The image formed in pinhole camera is laterally inverted.Reason(R) : Image gives the shape, size and color of the object.

A A and R are true and R is not the correct explanation of A B A and R are false C A is true and R is false D A and R are true and R is the correct explanation of A.

3. When an opaque object comes in the path of light it forms

A an image with colours B black and white image C Shapes depending on the colour of the object D shadow

4. In a mirror, if A is able to see B, B also can see A. True/False

A True B False C Both D None of these

5. All the shining bodies in sky have their own?

A Absolutely yes B False C Not sure D Firefly

6. Opaque objects cast …………………. shadows in morning and ………………… shadows at noon.

A big, small B small, big C Both D None

7. Images formed by a pinhole camera is ……………….. whereas images formed by a plane mirror is …………….. .

A erect & upside down B Not upside down & bent C upside down and erect D None

8. A student is making a model of a garden. He wants to cover the model with a sheet that allows everyone to see through it. Which sheet should the student use?

A paper B aluminium foil C plastic wrap D None

9. A student stands in front of a lamp to produce the shadow of his body. The shadow of the boy is formed on the screen as shown.What can be concluded from the observation regarding formation of the shadows?

A the screen must be placed in front of the opaque object B the opaque object must be placed behind the source of light C the opaque object must be placed between source of light and the screen D the source of light must be placed between the opaque object and the screen

10. A student has the given objects for an experiment:-A candle A white cardboardA ballA mirrorThere are three positions (X, Y, and Z) marked on the table.What should be placed at these positions to form an image on the white cardboard?

A X: candle, Y: ball, Z: mirror B X: mirror, Y: ball, Z: cardboard C X: candle, Y: ball, Z: cardboard D X: ball, Y: candle, Z: cardboard