Class 7 Science Ch- Light

Ques 1. The coloured band of light obtained by dispersion of light is called:

• refraction
• prism
• spectrum
• rainbow

Ques 2. The image formed by a convex mirror is:

• Real, inverted, and enlarged
• Virtual, inverted, and enlarged
• Real, upright, and diminished
• Virtual, upright, and diminished

Ques 3. Light is a form of:

• Energy

• Power

• Heat

• Temprature

Ques 4. Which one shows lateral inversion?

• Plane mirror

• Concave mirror

• Convex mirror

• All of these

Ques 5. The image which can be caught on a screen is called:

• Virtual image

• Shadow

• Impression

• Real image

Ques 6. Which type of mirror can produce a virtual image that is larger than the object?

• Plane mirror

• Concave mirror

• Convex mirror

• All of these

Ques 7. What phenomenon causes a rainbow to form in the sky?

• Reflection

• Dispersion

• Refraction

• Diffraction

Ques 8. Which type of lens is used to correct nearsightedness?

• Concave lens

• Convex lens

• Plano-convex lens

• Convex-concave lens

Ques 9. The bending of light as it passes from one medium to another is called:

• Dispersion

• Diffraction

• Refraction

• Reflection