Ncert solutions

Ncert solutions

Grade 8

Synthetic Fibres and Plastic | Exercise

Question 11

Q11) Should the handle and bristles of a tooth brush be made of the same material? Explain your answer.

Solution 11:

  • No, the handle and bristle of a toothbrush should not be made of the same material.
  • The handle of the toothbrush should be hard and strong while the bristle should be soft and flexible.
  • The bristles are made up of nylon fibres which are strong, elastic, lustrous, lightweight and easy to handle.
  • The handle is made of hard plastic as it is strong, durable, poor conductor of heat and electricity.

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subject-cta

Question 11

Q11) Should the handle and bristles of a tooth brush be made of the same material? Explain your answer.

Solution 11:

  • No, the handle and bristle of a toothbrush should not be made of the same material.
  • The handle of the toothbrush should be hard and strong while the bristle should be soft and flexible.
  • The bristles are made up of nylon fibres which are strong, elastic, lustrous, lightweight and easy to handle.
  • The handle is made of hard plastic as it is strong, durable, poor conductor of heat and electricity.

Still have questions? Our expert teachers can help you out

Book a free class now

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subject-cta
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