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Question 3 :
The power of a lens whose focal length is one metre is ______ dioptre.
Question 4 :
Choose the correct answer:<br>The nature of image formed by convex mirror is:
Question 5 :
When a ray of light passes from an optically less dense medium to a more dense medium, it :
Question 6 :
A thin film of thickness i and index of refraction 1.33 coats a glass with index of refraction 1.50. What is the least thickness/that will strongly reflect light with wavelength 600 nm incident normally?
Question 7 :
Material $1$ has an index of refraction of $1.15$.<br/>Material $2$ has an index of refraction of $2.30$.<br/>If light passes from air into each of these materials at the same angle of incidence, how will the angle of refraction in material $1$ compare to the angle of refraction in material $2$?
Question 8 :
Which of the following mirrors forms an image which is virtual and smaller in size?
Question 10 :
Which of the following term is not associated with a lens?
