Class 7 Exam > Class 7 Questions > Which of the following materials cannot be us...
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Which of the following materials cannot be used to make a lens?
- a)Water
- b)Glass
- c)Plastic
- d)Clay
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Which of the following materials cannot be used to make a lens?a)Water...
Clay
This question is part of UPSC exam. View all Class 7 courses
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Which of the following materials cannot be used to make a lens?a)Water...
Materials for Making Lenses
Lenses are used to focus light and produce images. They can be made from different materials, but there are some materials that cannot be used to make lenses. Let's take a look at the options given in the question:
a) Water - Water can be used to make lenses, especially in low-power applications such as magnifying glasses or reading lenses.
b) Glass - Glass is a common material used to make lenses, especially in cameras, telescopes, and eyeglasses.
c) Plastic - Plastic lenses are also common and are used in eyeglasses and cameras.
d) Clay - Clay is not a suitable material for making lenses as it cannot be molded or shaped with the precision required to produce clear images.
Conclusion
In conclusion, the material that cannot be used to make lenses is clay. The other options, water, glass, and plastic, are all suitable for making lenses depending on the application and the required optical properties.
Lenses are used to focus light and produce images. They can be made from different materials, but there are some materials that cannot be used to make lenses. Let's take a look at the options given in the question:
a) Water - Water can be used to make lenses, especially in low-power applications such as magnifying glasses or reading lenses.
b) Glass - Glass is a common material used to make lenses, especially in cameras, telescopes, and eyeglasses.
c) Plastic - Plastic lenses are also common and are used in eyeglasses and cameras.
d) Clay - Clay is not a suitable material for making lenses as it cannot be molded or shaped with the precision required to produce clear images.
Conclusion
In conclusion, the material that cannot be used to make lenses is clay. The other options, water, glass, and plastic, are all suitable for making lenses depending on the application and the required optical properties.
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Which of the following materials cannot be used to make a lens?a)Water b)Glassc)Plastic d)ClayCorrect answer is option 'D'. Can you explain this answer?
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Which of the following materials cannot be used to make a lens?a)Water b)Glassc)Plastic d)ClayCorrect answer is option 'D'. Can you explain this answer? for Class 7 2024 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about Which of the following materials cannot be used to make a lens?a)Water b)Glassc)Plastic d)ClayCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 7 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following materials cannot be used to make a lens?a)Water b)Glassc)Plastic d)ClayCorrect answer is option 'D'. Can you explain this answer?.
Which of the following materials cannot be used to make a lens?a)Water b)Glassc)Plastic d)ClayCorrect answer is option 'D'. Can you explain this answer? for Class 7 2024 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about Which of the following materials cannot be used to make a lens?a)Water b)Glassc)Plastic d)ClayCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 7 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following materials cannot be used to make a lens?a)Water b)Glassc)Plastic d)ClayCorrect answer is option 'D'. Can you explain this answer?.
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