Light - 2 quiz

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

• (a) an image with colours

• (b) shadow

• (c) black and white image

• (d) depends on the colour of the light

What is lateral inversion?

• (a) Image becomes inverted

• (b) Image bends laterally

• (c) Right of the object appears left of the image

• (d) All of these happen

Which letters of English alphabet will not show lateral inversion?

• (a) I, O, U

• (b) N, Z, X

• (c) I, X, E

• (d) A, E, I

Which is a device to image the sun?

• (a) Plane mirror

• (b) Pinhole camera

• (c) A straight pipe

• (d) Glass slab

Which of the following is a cold source of light?

• (a) Firefly (Jugnu)

• (b) Tube light

• (c) The sun

• (d) Electric bulb

Out of these, which one is not a man-made luminous body?

• (a) Electric bulb

• (b) Burning candle

• (c) Firefly (Jugnu)

• (d) Oil lamp

Which types of objects allow all light to pass through them?

• (a) Translucent

• (b) Opaque

• (c) Transparent

• (d) Penumbra

Image formed by a plane mirror is …………….. .

• Virtual

• Erect

• Laterally inverted

• All of above

……………… objects cast no shadow.

• Transparent

• Translucent

• Opaque

• None of above

When screen is far away from the objects, the shadow will have no penumbra.

• True

• False

• Can't say

• None of above