The path of light is ______

(a)

rays

(b)

point

(c)

lines

(d)

beam

The group of rays is ______

(a)

lines

(b)

dots

(c)

beam

(d)

none of these

The velocity of light is _______

(a)

3 x 10^-8 ms^-1

(b)

3 x 10⁸  ms^-1

(c)

3 x 10⁸ km s^-1

(d)

3 x 10^-8 km s^-1

Velocity and wavelength of light are related by a relation

(a)

g-c⋋

(b)

\(\gamma =\frac { c }{ \lambda } \)

(c)

c=\(\gamma \)⋋

(d)

both b & c

Violet and red light ______ wavelengths.

(a)

lowest, highest

(b)

highest, lowest

(c)

same

(d)

standard