Sunday, August 26, 2012


Answers on next post

A diverging (concave) lens can form images that are?

A. Virtual, only
B. Inverted, only
C. Either virtual or real
D. Either inverted or erect

 A ray of light strikes a plane mirror at an angle of incidence equal to 35 degrees. The angle between the incidence ray and the reflected ray is ___. 

A. 45 degrees
B. 60 degrees
C. 70 degrees
D. 80 degrees
Compared to the wavelengths of visible light the wavelengths of UV light are 

A. Shorter
B. Longer
C. The Same

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