Lenses

Select the concave lens

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There are two types of lenses which are _________ and _________ lenses.

• concave

• straight

• convex

• circle

WHEN THE LIGHT TRAVELS IN A ONE TRANSPARENT MEDIUM TO ANOTHER CALLED

• REFLECTION OF LIGHT

• RECTILINEAR PROPAGATION OF LIGHT

• REFRACTION OF LIGHT

• REGULAR REFLECTION OF LIGHT

Name the optical instrument above.

• Telescope

• Magnifying glass

• Microscope

• Stethoscope

This tool is used for measuring temperature. Usually a glass tube that contains a column of liquid, that rises and falls as the temperature changes.

• magnifying lens
• microscope
• thermometer

THE RAY OF LIGHT IS SENT BACK FROM MIRROR IS CALLED

• INCIDENT RAY

• REFLECTED RAY

• POINT OF INCIDENCE

• ANGLE OF INCIDENT

Name the instrument shown

• Telescope

• Microscope

• Magnifying glass

• Glass

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

• convex

• concave

• reflection

• plane

Light rays refracted ____ the normal when it travels from a air to glass

• away from

• towards

To observe tiny objects

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