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11th Class Physics Chapter 9 MCQs with Answers

11th Class Physics Chapter 9 MCQs

Revise optical phenomena with Physical Optics MCQs, covering diffraction, interference, and polarization. Chapter 9 quizzes enhance learning for 11th Class Physics students.

Which phenomenon explains why the sky appears blue on a clear day?
a) Reflection
b) Diffraction
c) Dispersion
d) Scattering

Answer
d) Scattering

The bending of light waves as they pass through an opening or around an obstacle is called:
a) Diffraction
b) Refraction
c) Reflection
d) Polarization

Answer
a) Diffraction

The colors seen in a soap bubble are the result of:
a) Interference
b) Diffraction
c) Dispersion
d) Reflection

Answer
a) Interference

The phenomenon of splitting white light into its component colors is known as:
a) Diffraction
b) Dispersion
c) Polarization
d) Reflection

Answer
b) Dispersion

What type of lens is thicker at the center than at the edges?
a) Convex lens
b) Concave lens
c) Plano-convex lens
d) Plano-concave lens

Answer
a) Convex lens

Which of the following statements is true about a virtual image?
a) It is formed by the actual intersection of light rays.
b) It is always smaller than the object.
c) It can be projected onto a screen.
d) It cannot be seen directly.

Answer
d) It cannot be seen directly.

The bending of light as it passes from one medium to another with different refractive indices is known as:
a) Diffraction
b) Dispersion
c) Reflection
d) Refraction

Answer
d) Refraction

The phenomenon of producing a rainbow is an example of:
a) Refraction
b) Reflection
c) Diffraction
d) Interference

Answer
b) Reflection

The phenomenon of a spoon appearing bent when partially immersed in a glass of water is due to:
a) Dispersion
b) Reflection
c) Refraction
d) Diffraction

Answer
c) Refraction

Which of the following optical devices uses total internal reflection to transmit light signals?
a) Microscope
b) Telescope
c) Fiber optic cable
d) Camera

Answer
c) Fiber optic cable

The splitting of light into its different colors as it passes through a prism is an example of:
a) Dispersion
b) Diffraction
c) Interference
d) Polarization

Answer
a) Dispersion

Which type of mirror forms a virtual, magnified, and upright image?
a) Convex mirror
b) Concave mirror
c) Plane mirror
d) Spherical mirror

Answer
a) Convex mirror

The change in the direction of a wavefront at the boundary of two media is called:
a) Diffraction
b) Dispersion
c) Refraction
d) Polarization

Answer
c) Refraction

What is the phenomenon responsible for the colors seen in an oil slick on water?
a) Diffraction
b) Dispersion
c) Interference
d) Scattering

Answer
d) Scattering

The change in the speed of light as it passes from one medium to another is known as:
a) Diffraction
b) Dispersion
c) Reflection
d) Refraction

Answer
d) Refraction

The optical phenomenon responsible for the appearance of colors on a soap bubble is:
a) Dispersion
b) Diffraction
c) Interference
d) Polarization

Answer
c) Interference

The change in the direction of light waves as they pass through a narrow slit is called:
a) Diffraction
b) Dispersion
c) Reflection
d) Refraction

Answer
a) Diffraction

Which type of lens is thinner at the center than at the edges?
a) Convex lens
b) Concave lens
c) Plano-convex lens
d) Plano-concave lens

Answer
b) Concave lens

The phenomenon in which light waves cancel each other out or reinforce each other is known as:
a) Refraction
b) Reflection
c) Diffraction
d) Interference

Answer
d) Interference

Which type of mirror forms a real, inverted, and magnified image?
a) Convex mirror
b) Concave mirror
c) Plane mirror
d) Spherical mirror

Answer
b) Concave mirror

The phenomenon of a pencil appearing bent when partially immersed in water is an example of:
a) Dispersion
b) Reflection
c) Refraction
d) Diffraction

Answer
c) Refraction

The process of light waves bouncing off a surface is called:
a) Diffraction
b) Dispersion
c) Reflection
d) Refraction

Answer
c) Reflection

The phenomenon in which a light wave changes its direction as it passes around the edges of an obstacle is known as:
a) Diffraction
b) Dispersion
c) Reflection
d) Refraction

Answer
a) Diffraction

The bending of light waves as they pass through a prism is an example of:
a) Diffraction
b) Dispersion
c) Interference
d) Polarization

Answer
b) Dispersion

What type of lens is thicker at the center than at the edges?
a) Convex lens
b) Concave lens
c) Plano-convex lens
d) Plano-concave lens

Answer
a) Convex lens

Which of the following statements is true about a virtual image?
a) It is formed by the actual intersection of light rays.
b) It is always smaller than the object.
c) It can be projected onto a screen.
d) It cannot be seen directly.

Answer
d) It cannot be seen directly.

The bending of light as it passes from one medium to another with different refractive indices is known as:
a) Diffraction
b) Dispersion
c) Reflection
d) Refraction

Answer
d) Refraction

The phenomenon of producing a rainbow is an example of:
a) Refraction
b) Reflection
c) Diffraction
d) Interference

Answer
b) Reflection

The phenomenon of a spoon appearing bent when partially immersed in a glass of water is due to:
a) Dispersion
b) Reflection
c) Refraction
d) Diffraction

Answer
c) Refraction

Which of the following optical devices uses total internal reflection to transmit light signals?
a) Microscope
b) Telescope
c) Fiber optic cable
d) Camera

Answer
c) Fiber optic cable

The splitting of light into its different colors as it passes through a prism is an example of:
a) Dispersion
b) Diffraction
c) Interference
d) Polarization

Answer
a) Dispersion

Which type of mirror forms a virtual, magnified, and upright image?
a) Convex mirror
b) Concave mirror
c) Plane mirror
d) Spherical mirror

Answer
a) Convex mirror

The change in the direction of a wavefront at the boundary of two media is called:
a) Diffraction
b) Dispersion
c) Refraction
d) Polarization

Answer
c) Refraction

What is the phenomenon responsible for the colors seen in an oil slick on water?
a) Diffraction
b) Dispersion
c) Interference
d) Scattering

Answer
d) Scattering

The change in the speed of light as it passes from one medium to another is known as:
a) Diffraction
b) Dispersion
c) Reflection
d) Refraction

Answer
d) Refraction

The optical phenomenon responsible for the appearance of colors on a soap bubble is:
a) Dispersion
b) Diffraction
c) Interference
d) Polarization

Answer
c) Interference

The change in the direction of light waves as they pass through a narrow slit is called:
a) Diffraction
b) Dispersion
c) Reflection
d) Refraction

Answer
a) Diffraction

Which type of lens is thinner at the center than at the edges?
a) Convex lens
b) Concave lens
c) Plano-convex lens
d) Plano-concave lens

Answer
b) Concave lens

The phenomenon in which light waves cancel each other out or reinforce each other is known as:
a) Refraction
b) Reflection
c) Diffraction
d) Interference

Answer
d) Interference

Which type of mirror forms a real, inverted, and magnified image?
a) Convex mirror
b) Concave mirror
c) Plane mirror
d) Spherical mirror

Answer
b) Concave mirror

The phenomenon of a pencil appearing bent when partially immersed in water is an example of:
a) Dispersion
b) Reflection
c) Refraction
d) Diffraction

Answer
c) Refraction

The process of light waves bouncing off a surface is called:
a) Diffraction
b) Dispersion
c) Reflection
d) Refraction

Answer
c) Reflection

The phenomenon in which a light wave changes its direction as it passes around the edges of an obstacle is known as:
a) Diffraction
b) Dispersion
c) Reflection
d) Refraction

Answer
a) Diffraction

The bending of light waves as they pass through a prism is an example of:
a) Diffraction
b) Dispersion
c) Interference
d) Polarization

Answer
b) Dispersion

What type of lens is thicker at the center than at the edges?
a) Convex lens
b) Concave lens
c) Plano-convex lens
d) Plano-concave lens

Answer
a) Convex lens

Which of the following statements is true about a virtual image?
a) It is formed by the actual intersection of light rays.
b) It is always smaller than the object.
c) It can be projected onto a screen.
d) It cannot be seen directly.

Answer
d) It cannot be seen directly.

The bending of light as it passes from one medium to another with different refractive indices is known as:
a) Diffraction
b) Dispersion
c) Reflection
d) Refraction

Answer
d) Refraction

The phenomenon of producing a rainbow is an example of:
a) Refraction
b) Reflection
c) Diffraction
d) Interference

Answer
b) Reflection

The phenomenon of a spoon appearing bent when partially immersed in a glass of water is due to:
a) Dispersion
b) Reflection
c) Refraction
d) Diffraction

Answer
c) Refraction

Which of the following optical devices uses total internal reflection to transmit light signals?
a) Microscope
b) Telescope
c) Fiber optic cable
d) Camera

Answer
c) Fiber optic cable

The splitting of light into its different colors as it passes through a prism is an example of:
a) Dispersion
b) Diffraction
c) Interference
d) Polarization

Answer
a) Dispersion

Which type of mirror forms a virtual, magnified, and upright image?
a) Convex mirror
b) Concave mirror
c) Plane mirror
d) Spherical mirror

Answer
a) Convex mirror

The change in the direction of a wavefront at the boundary of two media is called:
a) Diffraction
b) Dispersion
c) Refraction
d) Polarization

Answer
c) Refraction

What is the phenomenon responsible for the colors seen in an oil slick on water?
a) Diffraction
b) Dispersion
c) Interference
d) Scattering

Answer
d) Scattering

The change in the speed of light as it passes from one medium to another is known as:
a) Diffraction
b) Dispersion
c) Reflection
d) Refraction

Answer
d) Refraction

The optical phenomenon responsible for the appearance of colors on a soap bubble is:
a) Dispersion
b) Diffraction
c) Interference
d) Polarization

Answer
c) Interference

The change in the direction of light waves as they pass through a narrow slit is called:
a) Diffraction
b) Dispersion
c) Reflection
d) Refraction

Answer
a) Diffraction

Which type of lens is thinner at the center than at the edges?
a) Convex lens
b) Concave lens
c) Plano-convex lens
d) Plano-concave lens

Answer
b) Concave lens

The phenomenon in which light waves cancel each other out or reinforce each other is known as:
a) Refraction
b) Reflection
c) Diffraction
d) Interference

Answer
d) Interference

Which type of mirror forms a real, inverted, and magnified image?
a) Convex mirror
b) Concave mirror
c) Plane mirror
d) Spherical mirror

Answer
b) Concave mirror

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See Also  11th Class Chemistry Chapter 2 MCQs with Answers
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