Transparent, Translucent and Opaque Objects

Q.

Which is a luminous body?

1. moon

2. planets

3. burning candle

4. mountains

Q.

Why don’t the transparent materials form shadows?

Q. If we can see only partially through an object, then such object is called _____________.

1. Opaque
2. Luminous
3. Translucent
4. Transparent

Q. If we can only see partially through an object, then such object is _____________.

1. transparent
2. opaque
3. luminous
4. translucent

Q. If we can partially see through an object, then such object is called .

1. opaque
2. translucent
3. transparent
4. luminous

Q.

Which of the following materials can be used to make a convex lens?

1. Transparent glass

2. Clear ice

3. Smooth steel

4. White cement

Q. The shadow of a/an object will be more prominent than the shadow of a/an object under the same conditions.

1. opaque
2. translucent
3. light
4. heavy

Q. If we can see only partially through an object, then such an object is called .

1. translucent
2. transparent
3. opaque

Q. Which of the following objects forms the most prominent shadow?

1. Translucent
2. Opaque
3. Transparent
4. Combination of a transparent and a translucent object

Q. If we can partially see through an object, then such object is called .

1. transparent
2. luminous
3. opaque
4. translucent

Q. An object that allows some light to pass through it is called opaque object.

1. False
2. True

Q. What is a lens?