X-Mixed Que

Which lens represents the path light takes through a diverging lens?

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Which optical device bends light inward?

• convex lens

• concave lens

• plane mirror

• convex mirror

What type of lens is used in the shown instrument?

• concave lens

• convex lens

• reflection lens

• reduction lens

What type of lens creates the image seen in the eyeglasses?

• convex

• concave

• reflection

• plane

A lens that is thicker in the middle than on the outside is called ___.

• diverging

• concave

• convex

• achromatic

A lens that is thinner in the middle than on the outside is called ___.

• diverging

• concave

• convex

• achromatic

You are asked to design an astronomical telescope at normal adjustment using two convex lenses P and Q.

The power of lens P is 5 D and lens Q is 25 D.

Calculate the distance between lenses P and Q.

• 2.04 cm

• 20.0 cm

• 24.0 cm

• 30.0 cm

Rays of light from a point object, after refraction through the lens actually meet to form an image.

• real image

• virtual image

• actual image

• erect image

When an object is placed between the focal point and the optical centre of the convex lens, the image produced is ___.

• real, diminished, and inverted

• real, enlarged, and inverted

• virtual, enlarged, and erect

• virtual, diminished and erect

When an object is placed on the focal point in front of a convex lens, the image produced is ___.

• real, reduced, and inverted
• real, enlarged, and inverted
• real, true, and inverted
• There is no image