Quiz Class 7th Science 06-05-2026

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Q1. Reflection

Step-by-step explanation:

1. Light travels in a straight line.
2. When light hits a mirror, it bounces back.
3. This bouncing back of light is called Reflection.
4. A mirror changes the direction of light, not its medium.

Conclusion:
Change in direction of light by a mirror = Reflection.

Q2. Concave mirror

explanation:

1. A real image is formed when light rays actually meet.
2. Plane mirror → always forms virtual image.
3. Convex mirror → always forms virtual image.
4. Concave mirror can form:
   • Real image (when object is far)
   • Virtual image (when object is very close)

Conclusion:
Only concave mirror can form a real image (in given options).

Q3. Virtual and erect

explanation:

1. A plane mirror forms an image behind the mirror.
2. The image cannot be captured on a screen → virtual.
3. The image is upright → erect.
4. It is also same size and laterally inverted (left-right reversed).

Conclusion:
Plane mirror always forms virtual and erect image.

Q4. Convex lens

explanation:

1. Lenses are of two main types: concave and convex.
2. A convex lens is thicker at the center and thinner at edges.
3. It converges (focuses) light rays to a point.
4. A concave lens is thinner at the center (opposite shape).

Conclusion:
Lens thicker in the middle = Convex lens.

Q5. Seven colors

explanation:

1. White light is a mixture of different colors.
2. When it passes through a prism, it splits into colors.
3. This process is called Dispersion of light.
4. The colors are: VIBGYOR
   • Violet, Indigo, Blue, Green, Yellow, Orange, Red

Conclusion:
White light is made up of 7 colors.