Question and Answers Forum
OpticsQuestion and Answers: Page 1
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Question and Answers Forum |
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OpticsQuestion and Answers: Page 1 |
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| (1/f)=(n−1)((1/R_1 )−(1/R_2 )) lense′s maker equation. when is positive or negative R_1 and R_2 ? |
| write snell′s law that light move a concentrative medium to nonconcentrative medium and show with a shape. |
| prove snell′s law |
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| prove the distance between object and image of glass slab. |
| Which is the true magnefication′s formula for the concave mirror? m=(f/(p−f))? m=−(f/(p−f))? |
| Prove the magnefication for concave mirror. m=(f/(∣f−p∣)) |
| what is the focal length formula for combined lenses? if lenses more than tow? |
| prove that n=((360^° )/∝)−1 n=number of multiple images |
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| how is the significant figures in 132+32.67+23+566?? |
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| A convex mirror of radius of curvature 30cm forms a real image 20cm from its surface.Find whether the imavect is erect or inverted.Please explain how possible this is. Thanks in advance. |
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| A signpost 4.5cm high is 30cm away⊛ from Mrs Rahup.What is the height of the image formed in her retina?(Take the eye lens-retina distance as 1.5cm). |
| A man,near point is 90cm from his eyes and his far point is 3cm. What type of eye defect has he? If he is to read a book at 25cm and see distant object clearly,what type and power of lenses will you recommend for him? |