मराठी

Which of the following can never form a circular shadow?

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प्रश्न

Which of the following can never form a circular shadow?

पर्याय

  • A ball

  • A flat disc

  • A shoe box

  • An ice cream cone

MCQ
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उत्तर

A shoe box

Explanation:

A shoe box is either rectangle or square in shape.

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पाठ 11: Light - Multiple Choice Questions [पृष्ठ ६६]

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एनसीईआरटी एक्झांप्लर Science Exemplar [English] Class 6
पाठ 11 Light
Multiple Choice Questions | Q 6. | पृष्ठ ६६

संबंधित प्रश्‍न

Fill in the blank.

The less dark portion of a shadow is called the .................


Select the correct alternative.

Umbra is a region of


Select the correct alternative.

Penumbra is a region of


What is a shadow? Give a reason for its formation.


Draw a ray diagram to show the formation of the shadow of an opaque object by a point source of light. How is the size of shadow affected if the screen is moved away from the object?


Draw a ray diagram to show the formation of umbra alone.


In the following diagram, draw rays to form a penumbra on the screen.


State the conditions when only the penumbra of an opaque object is obtained on the screen.


Answer the following.

How is a shadow formed? Write the conditions required for a shadow to form.


What is shadow? 


When does a shadow form?


Sivarajan placed a meter stick in the playground at 7.00 am in the morning. How will the shadow of the stick at noon look in comparison to the one in the morning


The ______ is the darkest part of a shadow.


Three torches A, B and C shown in the following figure are switched on one by one. The light from which of the torches will not form a shadow of the ball on the screen.


Correct the following statements.

  1. The colour of the shadow of an object depends on its colour of the object.
  2. Transparent objects allow light to pass through them partially.

A torch is placed at two different positions A and B, one by one, as shown in the following figure.


The shape of the shadow obtained in two positions is shown in the following figure.


Match the position of the torch and shape of the shadow of the ball.


A football match is being played at night in a stadium with flood lights ON. You can see the shadow of a football kept at the ground but cannot see its shadow when it is kicked high in the air. Explain.


A student had a ball, a screen and a torch in working condition. He tried to form a shadow of the ball on the screen by placing them at different positions. Sometimes the shadow was not obtained. Explain.


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