# ICSE Class 9th Physics – Light MCQs

#### A person is waving his left hand looking into a plane mirror will observe that the image is ____.

Correct! Wrong!

A person waving his left hand looking into a plane mirror, will observe that the image is waving its right hand.

#### A convex mirror always produces ____ and ____ images.

Correct! Wrong!

A convex mirror always produces virtual and diminished image irrespective of the position of the object in front of the mirror.

#### A ray of light that bounces off the surface of a mirror is called ____.

Correct! Wrong!

A ray of light that bounces off the surface of a mirror is called a reflected ray.

#### Which of the following changes the direction of light?

Correct! Wrong!

A mirror changes the direction of light that falls on it.

#### Convex mirrors can form images of objects spread over a large area. So, these help drivers to see the traffic behind them.

Correct! Wrong!

Convex mirrors can form images of objects spread over a large area. So, these help drivers to see the traffic behind them.

#### Distances measured above the principal axis are taken as positive.

Correct! Wrong!

According to the new cartesian sign convention, distances measured above the principal axis are taken as positive.

#### Angle of incidence is ____ equal to angle of reflection.

Correct! Wrong!

Angle of incidence is always equal to angle of reflection.

#### Any polished or shiny surface can act as a ____.

Correct! Wrong!

Any polished or shiny surface can act as a mirror.

#### The surface of water can also act like a mirror and change the path of light.

Correct! Wrong!

The surface of water acts like a mirror and changes the path of light.

#### For a concave mirror the focal length is ____ and the radius of curvature is ____.

Correct! Wrong!

For a concave mirror the both focal length and radius of the curvature are taken negative.

#### The outer surface of a stainless steel spoon acts as a ____ mirror.

Correct! Wrong!

The outer surface of a stainless steel spoon acts as a convex mirror.

#### The reflectors of torches and the headlights of cars and scooters are ____ in shape.

Correct! Wrong!

The reflectors of torches and the headlights of cars and scooters are concave in shape.

#### The image of an object formed using the convex side of a steel spoon is ____ in size.

Correct! Wrong!

The image of an object formed using the convex side of a steel spoon is erect and smaller in size.

#### If the reflecting surface of a spherical mirror is concave, it is called a ____ mirror.

Correct! Wrong!

If the reflecting surface of a spherical mirror is concave, it is called a concave mirror.

#### An image that cannot be formed on a screen is called a virtual image.

Correct! Wrong!

An image that cannot be formed on a screen is called a virtual image.

#### A parallel beam of light rays is incident on a surface. If reflected rays travel as a parallel beam, then that reflection is called ____.

Correct! Wrong!

In a regular reflection, a parallel beam of light falling on a smooth surface gets reflected in one direction, and the reflected rays are parallel to each other.

#### A mirror changes the direction of light that falls on it. This property is called ____ of light.

Correct! Wrong!

A mirror changes the direction of light that falls on it. This property is called reflection of light.

#### The device used for seeing the objects on the other side of high walls is called a ____.

Correct! Wrong!

The device used for seeing the objects on the other side of high walls is called a periscope. A periscope is based on the principle of successive reflections from two plane mirrors.

#### When the image of an object formed by a mirror is erect, virtual and smaller in size than the object, then the mirror is ____.

Correct! Wrong!

When the image of an object formed by a mirror is erect, virtual and smaller in size than the object, then the mirror is convex.

#### The inner surface of a stainless steel spoon acts as a ____ mirror.

Correct! Wrong!

The inner surface of a stainless steel spoon acts as a concave mirror.

#### An image that can be obtained on a screen is called a virtual image.

Correct! Wrong!

An image that can be obtained on a screen is called a real image.

#### The image formed by a plane mirror is ____.

Correct! Wrong!

The image formed by a plane mirror is erect.

#### If you stand in front of a plane mirror, and scratch your left cheek, you find your image scratching its right cheek.

Correct! Wrong!

In a plane mirror, the image formed is always laterally inverted, which means that the right side of an object appears on the left in the image, and vice versa. Hence, if you stand in front of a plane mirror, and scratch your left cheek, you find your image scratching its right cheek.

#### A real image is always erect.

Correct! Wrong!

A real image is always inverted with respect to the object and it can be obtained on a screen.

#### In a plane mirror, the image is formed ____ the mirror.

Correct! Wrong!

In a plane mirror, the image is formed behind the mirror.

#### The image of an object placed in front of a plane mirror ____.

Correct! Wrong!

The image of an object placed in front of a plane mirror cannot be obtained on a screen.

#### A ____ mirror forms a real image of the sun.

Correct! Wrong!

A concave mirror forms a real image of the sun.

#### Light travels along a ____.

Correct! Wrong!

Light travels along straight lines.

#### Doctors use concave mirrors for examining the eyes, ears, nose and throat.

Correct! Wrong!

Concave mirror forms clear and magnified image when the object is within focus. Hence, doctors use concave mirrors for examining the eyes, ears, nose and throat.

#### The incident ray, reflected ray and the normal at the point of incidence lie on different planes.

Correct! Wrong!

According the second law of reflection, the incident ray, reflected ray and the normal at the point of incidence lie on the same plane.

ICSE Class 9th Physics - Light MCQs
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