SP_Quiz no. 3 ('23-'24)

Which optical instrument can you use to view a magnified version

    of a very small yet very near object?

• Camera

• Terrestrial Telescope

• Astronomical Telescope

• Compound Microscope

What are the optical instruments used in a microscope?

• Concave and convex lens

• Two concave lenses

• Two convex lenses

• None of the above

What is TRUE about a telescope as an optical instrument? It _____________________ .

• helps us see distant objects better

• magnifies distant objects

• gives us an erect image of the object

• all of the above

A girl wants to see an enlarged image of her face. What can serve

    her purpose well?

 

• Plane mirror

• Concave mirror

• Convex mirror

• Magnifying lens

What image is formed on the retina by the lens of the eye?

• Real and erect

• Real and inverted

• virtual and erect

• virtual and inverted

As used in the law of reflection, the word normal means _______.

• any ray

• tangent to the interface

• parallel to the interface

• perpendicular to the interface

When an object is at the center of curvature of a concave mirror, the image is _______________.

 

• real, upright, and bigger than the object

• real, inverted, and bigger than the object

• virtual, upright, and bigger than the object

• real, inverted, and the same size as the object

Which term refers to the width of a spherical mirror?

 

• aperture  

• radius of the curvature

• principal focus

• vertex

A card in front of a plane mirror has this mark – LUCKY. Which of the following is true? The mark will appear _____________ to a person looking at the mirror.

 

• LUCKY

• KYUCL

• YKCLU

• YKCUL

Which of the following mirrors always produces a magnification

      equal to 1?

 

• concave mirror 

• convex mirror

• plane mirror

• spherical mirror