Optics Answers

In the equation $\mu=\frac{sini}{sinr}, where I and r are the angles of incidence and refraction respectively, $\mu$ is called the ___________

The bending of a ray of lightas passes from one medium to another is called ___________________

Beyond the critical angle a ray of light moving from dense to rare medium suffers what

A ray of light travels from air to glass. The incident ray makes an angle of 45 degrees while the refracted ray makes and angle of 30 degrees with the normal to the interface. The speed of light in air is
3.0×108m/s
. What is the of speed of light in glass?

A convex mirror has a radius of 20 cm. An object is placed 30 cm in front of the mirror. Determine where the image will appear.

−4.5cm

−5.5cm

−6.5cm

−7.5cm

which of the following is not true of experiment involving curved mirrors?
a)image distance is negative for real image
b)object distance is positive
c)image distance is negative for virtual image
d)focal length is negative for convex mirrors

What is the maximum value of angle of prism if it is equal to minimum deviation (M=3/2)

What is the maximum value of angle of prism if it is equal to minimum deviation (M=3/2)

a double convex lens of focal length 20 cm is made of glass of refractive index 2/3.when placed completely in water(a M w) its focal length will be..
1) 80cm. 2) 15cm. 3) 17.7cm. 4) 22.5cm

a thin glass lens (refractive index 1.5) has optical power of -5D in air.its optical power in a liquid medium with refractive index 1.6 will be...
1)-25D. 2)25D. 3)-1D. 4) 0.625 D