Ahorizontal parallel-sided plate of glass having a refractive index of 1.56 is in contact with the surface tnk. a ray coming from above in air makes an angle of incidence of 32.5. with the normal to the top surface of the glass. take refractive index of air 1 a) what is the angle of refraction on glass surface? (5 pts) of wa er i b) what is the critical angle of gla ss-water surface as explained above?

(I). The angle of refraction on glass surface is 20.12°

(II). The critical angle of glass-water surface is  61.0°.

Explanation:

Given that,

Refractive index of glass = 1.56

Angle = 32.5

(I). We need to calculate the angle of refraction on glass surface

Using Snell's law

Put the value into the formula

(II). We need to calculate the critical angle of glass-water surface

Using formula of critical angle

Hence, (I). The angle of refraction on glass surface is 20.12°

(II). The critical angle of glass-water surface is  61.0°.

the working equation for the angular size is the product of the physical size and 360 degrees divided by the product of two pi and distance from earth. the minimum size would be 0.559 degrees while the maximum size would be 0.49 degrees. 

because growing process had stoped after 4-5 year