LIGHT

When light bounces of a mirror,it is

• Reflected

• Corrected

• Absorbed

• Refracted

The picture shows an area of Yosemite National Park.Which statement about light is supported by this picture?

• Light travels in a straight line until it enters a definite material like water in a lake

• Light can refract in air and in clean water

• The water in a lake is blue because light forms an image

• Light is reflected off the smooth surface of the lake

What happen to the light as it passess from air to the transparent window

• Light changes speed but not direction

• All light is reflected

• Light changes speed and direction

• All light pass through

Latif wakes up one morning and sees that it is foggy outside.Whcih term best describe the fog he sees

• Opaque

• Reflective

• Transparent

• Translucent

During a thunderstorm, Sanjay saw lightning and then heard thunder 5s later.Why did he see the lightning before he heard the thunder

• Sound travel faster than light

• Light travel faster than sound

• He would have seen the thunder and lightning at the same time

• There is no reason

Example of a luminous object

• Sun

• Moon

• Pencil

• Wall

Which of the following are used in projectors?

• A) Concave lens

• B) Convex mirrors

• C) Plane mirrors

• D) Convex lenses

What happens during lateral inversion?

• A) The right of the object will be on the right side of the image.

• B) The left side of the object will be on the left side of the image.

• C) The upper part of the object will be at the bottom of the object.

• D) The right side of the object will be on the left side of the image.

Why can't we see anything in a dark room?

• A) Everything is black in colour.

• B) Our eyes do not work in darkness.

• C) No light reaches our eyes.

• D) All the light gets scattered.

Which one of the following statements is true?

• A) A plane mirror sometimes forms an inverted image.

• B) A concave mirror always forms a virtual, erect and diminished image.

• C) A concave lens always forms a virtual, erect and diminished image.

• D) All of the above