Tag: objects that float or sink

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Questions Related to objects that float or sink

Multiple choice evs nature of things objects that float or sink substances that sink or float soluble and insoluble substances

What are transparent materials?

  1. The material which does not allow light to pass through it.

  2. The material which allows light to pass through it.

  3. The material through which light can pass partially.

  4. None of these.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Materials which allow light to completely pass through them without getting scattered are called Transparent material.

Example- a glass of water, clear eyeglasses.

Multiple choice evs nature of things objects that float or sink substances that sink or float soluble and insoluble substances

What do you call a substance through which things are partially visible?

  1. Opaque object

  2. Transparent object

  3. Lustrous object

  4. Translucent object
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The material which does not allow light to pass through it is called opaque and material which allows light to pass through it is called transparent. The material through which light can pass partially is called translucent, e.g. butter paper.

Multiple choice evs nature of things objects that float or sink substances that sink or float soluble and insoluble substances

Which of the following substance is not transparent?

  1. Glass

  2. Pure Water

  3. Air

  4. Steel
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Transparent material:- Materials which allow light to completely pass through them without getting scattered are called Transparent material.

Example- a glass of water, clear metal-containing.
Steel does not allow to pass light through it hence is an opaque object.

Multiple choice evs nature of things objects that float or sink substances that sink or float soluble and insoluble substances

Translucent substances  __________.

  1. allow the light to pass through it completely

  2. allow the light to pass through it partially

  3. does not allow the light to pass through it

  4. none of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Those materials that allow some light to pass through them are called translucent and include things like frosted glass and wax paper.

Multiple choice evs nature of things objects that float or sink substances that sink or float soluble and insoluble substances

Which of the following type of bodies form sharp shadows when placed in the path of light?

  1. Transparent

  2. Translucent

  3. Transparent and translucent

  4. Opaque
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Transport bodies allow light to pass through it while translucent bodies allow light partially through it but opaque bodies do not allow light to pass through it, so they form sharp shadows when placed in the path of light.

Option (D) is correct.

Multiple choice evs nature of things objects that float or sink substances that sink or float soluble and insoluble substances

Which of the following type of bodies form sharp shadows when placed in the path of light?

  1. Transparent

  2. Translucent

  3. Both A and B

  4. Opaque
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
An opaque object is neither transparent (allowing all light to pass through) nor translucent (allowing some light to pass through). 

When light strikes an interface between two substances, in general, some may be reflected, some absorbed, some scattered, and the rest transmitted. 

Opaque object forms sharp shadow when placed in the path of the light.

Hence, option D is correct.