Define the aperture for spherical mirrors.

Important Questions on Light: Reflection & Refraction at Spherical Surfaces

MEDIUM

10th Chhattisgarh Board

IMPORTANT

Science (Theory & Practical) Class-10>Chapter 13 - Light: Reflection & Refraction at Spherical Surfaces>Exercise>Q 9

Write a note on the converging and diverging nature of lenses.

MEDIUM

10th Chhattisgarh Board

IMPORTANT

Science (Theory & Practical) Class-10>Chapter 13 - Light: Reflection & Refraction at Spherical Surfaces>Exercise>Q 10

What is power of a lens. Write its unit.

MEDIUM

10th Chhattisgarh Board

IMPORTANT

Science (Theory & Practical) Class-10>Chapter 13 - Light: Reflection & Refraction at Spherical Surfaces>Exercise>Q 12

What will be the power of a convex lens of focal length $50 \mathrm{cm}$? What if the lens is concave?

MEDIUM

10th Chhattisgarh Board

IMPORTANT

Science (Theory & Practical) Class-10>Chapter 13 - Light: Reflection & Refraction at Spherical Surfaces>Exercise>Q 13

An object is placed at $15 \mathrm{cm}$ from the pole of a concave mirror of focal length $10 \mathrm{cm}$. What is the size, position, nature and magnification of the image?

HARD

10th Chhattisgarh Board

IMPORTANT

Science (Theory & Practical) Class-10>Chapter 13 - Light: Reflection & Refraction at Spherical Surfaces>Exercise>Q 14

The radius of curvature of a convex mirror is $30 \mathrm{cm}$. An object of height $5 \mathrm{cm}$ is kept at a distance of $10 \mathrm{cm}$ from the pole. Find the nature, size and magnification of image.

HARD

10th Chhattisgarh Board

IMPORTANT

Science (Theory & Practical) Class-10>Chapter 13 - Light: Reflection & Refraction at Spherical Surfaces>Exercise>Q 15

The focal length of a concave mirror is $10 \mathrm{cm}$. To obtain an image $5$ times bigger than the object, where should the object be placed so that the image is real.

HARD

10th Chhattisgarh Board

IMPORTANT

Science (Theory & Practical) Class-10>Chapter 13 - Light: Reflection & Refraction at Spherical Surfaces>Exercise>Q 15

The focal length of a concave mirror is $10 \mathrm{cm}$. To obtain an image $5$ times bigger than the object, where should the object be placed so that the image is virtual. 
 

HARD

10th Chhattisgarh Board

IMPORTANT

Science (Theory & Practical) Class-10>Chapter 13 - Light: Reflection & Refraction at Spherical Surfaces>Exercise>Q 16

The radius of curvature of a convex mirror is $30 \mathrm{cm}$. What will be the size, position and nature of the image if the object is placed at $12 \mathrm{cm}$ from the pole.