A mirror is turned through `15^@`. Through what angle does the reflected ray turn?

Light of wavelength 5000 Å falls on a plane reflecting surface. What are the wavelength and frequency of the reflected light? For what angle of incidence is the reflected ray normal to the incident ray?

A ray of light is incident at an angle 60^@ on a horizontal plane mirror.Through what angle ,should the mirror be tilted to make the reflected ray horizontal?

A ray of light strikes a plane mirror at an angle of incidence 45^@ as shown in the figure 9.115. After reflection, the ray of passess through a prism of refractive index 1.5 whose apex angle is 4^@ . Through what angle must the mirror be rotated if the total deviation of hte ray be 90^@ ?

The true value of dip at a place is 45^@ If the plane of the dip circle is turned through 60^@ from the magnetic meridian, what will be the apparaent value of the dip?

A ray of light is sent through the point P(1,2,3) and is reflected on the XY plane. If the reflected ray passes through the point Q(3,2,5) then the equation of the reflected ray is

What part of revolution have you turned through if you stand facing: west and turn clockwise to face east?

What part of revolution have you turned through if you stand facing: east and turn clockwise to face north?