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प्रश्न
उत्तर
1 nm = 10 Å
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संबंधित प्रश्न
Which one of the following materials cannot be used to make a lens?
How is the power of a lens related to its focal length?
What is the power of a convex lens of focal length 0.5 m?
The power of a lens is +2.0D. Its focal length should be :
How does focal length of a lens change when red light incident on it is replaced by violet light? Give reason for your answer.
How is accommodation produced?
The power of a lens is +2.0 D. Find its focal length and state the kind of lens.
A stick partly immersed in water appears to be bent. Draw a ray diagram to show the bending of the stick when placed in water and viewed obliquely from above.
When monochromatic red light is used instead of blue light in a convex lens, its focal length will ______.
The focal length of a double convex lens is equal to the radius of curvature of either surface. What is the refractive index of its material?
