S7U1L5_Revision

Which have only non-luminous object?

• Moon,table

• Star

• Firefly

• Fire

Light

• Is a form of energy

• Travels as a wave

• Travels much faster than sound (300,000km/s)

• All of the above

Opaque means...

• No light passes through it

• All light passes through it

• Some light passes through it

In the diagram, which letter represents the angle of incidence?

• A

• B

• C

• D

• E

Angle of incidence is 50 then the angle of reflection is ---

• 50

• 40

• 90

What is the best explanation for Mickey seeing himself in the mirror?

• refraction

• absorbtion

• reflection

What is the distance of your image from you if you stand 1.5 m in front of a plane mirror?

• 3 m

• 2 m

• 1.5 m

• 4 m

When the image of an object is seen in a plane mirror, the image is _____.

• real and upright.

• virtual and upright.

• virtual, inverted and has the same size with the object

• real and inverted.

A ray of light is incident towards a plane mirror at an angle of 40-degrees with the mirror surface. What will be the angle of reflection?

• 40 degrees

• 50 degrees

• 100 degrees

• 10 degrees

The light bulb is....

• a non-luminous object

• a luminous object