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Choose the correct option
(i) An opaque object stops the light completely.
(ii) Firefly is a non-luminous object.
(iii) Sun is the main source of natural light.
(iv) Shadows do not provide information about shapes of objects.
  • a)
    TTFF
  • b)
    TFTF
  • c)
    FFTT
  • d)
    FTFT
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Choose the correct option(i) An opaque object stops the light complete...
Firefly (Jugnu) is a luminous object.
Shadows provide information about an object.
Free Test
Community Answer
Choose the correct option(i) An opaque object stops the light complete...
Explanation:

Opaque Objects and Light:
- An opaque object is one that does not allow light to pass through it.
- When light falls on an opaque object, it is either absorbed or reflected.
- The object appears dark because it does not transmit light to our eyes.
- Therefore, an opaque object stops the light completely.

Firefly and Luminosity:
- A firefly is an example of a luminous object.
- Luminous objects are those that produce their own light.
- Fireflies produce light through a chemical reaction in their bodies.
- This light helps them attract mates and communicate with each other.
- Therefore, fireflies are considered luminous objects.

The Sun and Natural Light:
- The sun is the main source of natural light on Earth.
- It emits light and heat through a process called nuclear fusion.
- The light from the sun reaches the Earth and provides us with illumination during the day.
- It is the primary source of light for our planet.
- Therefore, the sun is indeed the main source of natural light.

Shadows and Object Shapes:
- Shadows are formed when an object blocks the path of light.
- They are areas where light cannot reach because the object is blocking it.
- Shadows provide important information about the shape and size of objects.
- By observing the shape and size of a shadow, we can determine the shape and size of the object casting the shadow.
- Therefore, shadows do provide information about the shapes of objects.

Correct Option:
- Based on the explanations given above, the correct option is b) TFTF.
- An opaque object does stop the light completely, fireflies are non-luminous objects, the sun is the main source of natural light, and shadows do provide information about the shapes of objects.
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Question Description
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