COPY: Class 10 Physics - Light and The Human Eye Quiz

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What are the two laws of reflection?

Reflection angle equals refracted angle, and incident ray, refracted ray, and normal all lie on the same plane

Incident angle equals reflected angle, and incident ray, refracted ray, and normal all lie on the same plane

Refraction angle equals incident angle, and incident ray, refracted ray, and normal all lie on the same plane

Reflection angle equals incident angle, and incident ray, reflected ray, and normal all lie on the same plane (correct)

Why is red colour selected for danger light signals?

Red light has the longest wavelength, making it visible from a distance

Red light has a soothing effect on the eyes in stressful situations

Red light is least scattered by fog or smoke, ensuring better visibility (correct)

Red light has the shortest wavelength, making it more noticeable during the day

What is meant by the term power of accommodation? Name the part of our eye that is responsible for the power of accommodation.

Power of accommodation refers to the ability of the eye to distinguish between colors. The cornea is responsible for the power of accommodation.

Power of accommodation refers to the ability of the eye to focus on objects at varying distances. The iris is responsible for the power of accommodation. (correct)

Power of accommodation refers to the ability of the eye to perceive depth. The sclera is responsible for the power of accommodation.

Power of accommodation refers to the ability of the eye to adjust to different light levels. The pupil is responsible for the power of accommodation.

What is dispersion of light?

Dispersion of light is the splitting of white light into its constituent colors Signup and view all the answers

Which type of mirror is used outside the driver's side of a vehicle?

Convex mirror Signup and view all the answers

A doctor has prescribed a corrective lens of power +1.5 D. Find the focal length of the lens. Is the prescribed lens diverging or converging?

-0.67m, diverging lens Signup and view all the answers

Why is a convex mirror preferred as a rear-view mirror in vehicles?

It provides a wider field of view Signup and view all the answers

What is the definition of refraction of light?

Change in direction of light as it passes from one medium to another Signup and view all the answers

What is the mirror image of the word 'AMBULANCE'?

ECNALUBAM Signup and view all the answers

What is the mirror formula used in optics?

$rac{1}{f} = rac{1}{v} + rac{1}{u}$ Signup and view all the answers

What are the two laws of reflection?

Law of reflection and law of reversibility Signup and view all the answers

List three differences between real and virtual images.

Real images can be projected on a screen, virtual images cannot be projected. Signup and view all the answers

Why is red color selected for danger light signals?

Red light has the longest wavelength Signup and view all the answers

Name the three common defects of vision and their causes.

Nearsightedness (myopia), farsightedness (hypermetropia), astigmatism Signup and view all the answers

What are two uses of concave mirrors?

Concave mirrors are used in solar cookers and make-up mirrors Signup and view all the answers

Define power of lens and write its S. I. unit.

$P = \frac{1}{f},$ where $f$ is the focal length; SI unit: dioptre (D) Signup and view all the answers

Q1 What is your Name?

Ramesh Signup and view all the answers

Q2 What is Apple?

fruit Signup and view all the answers

COPY: Class 10 Physics - Light and The Human Eye Quiz

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Questions and Answers

What are the two laws of reflection?

Why is red colour selected for danger light signals?

What is meant by the term power of accommodation? Name the part of our eye that is responsible for the power of accommodation.

What is dispersion of light?

Which type of mirror is used outside the driver's side of a vehicle?

A doctor has prescribed a corrective lens of power +1.5 D. Find the focal length of the lens. Is the prescribed lens diverging or converging?

Why is a convex mirror preferred as a rear-view mirror in vehicles?

What is the definition of refraction of light?

What is the mirror image of the word 'AMBULANCE'?

What is the mirror formula used in optics?

What are the two laws of reflection?

List three differences between real and virtual images.

Why is red color selected for danger light signals?

Name the three common defects of vision and their causes.

What are two uses of concave mirrors?

Define power of lens and write its S. I. unit.

Q1 What is your Name?

Q2 What is Apple?

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