Basic Terms in Ray Optics

Draw the divergent beam of light.

Draw convergent beam of light.

Who produced Ray of Light by Madonna?

A plane mirror produce a magnification of 

When a ray of light is incident normally on a plane mirror then the angle of reflection will be?

A clock hung on a wall has marks instead of numericals on its deal. On the adjusting wall, there is a plane mirror and the image of the clock in the mirror indicates the time $7:40$. Then the time on the clock is

A plane mirror is approaching you at $10 \raisebox{1ex}{$\mathrm{cm}$}\!\left/ \!\raisebox{-1ex}{$\sec $}\right.$. Your image shall approach you with a velocity of 

A ray of light is incident on plane mirror of an angle of incidence of ${30}^{\mathrm{o}}$. The deviation produced by the mirror is

The maximum illumination on a screen at a distance of $2\mathrm{m}$ from a lamp is $25 \mathrm{lux}$. The value of total luminous flux emitted by lamp is

A bulb of $100\mathrm{W}$ is hanging at a height of one meter above the centre of a circular table of diameter $4\mathrm{m}$. If the intensity at a point on its rim is ${\mathrm{I}}_0$. Then intnesity at the centre of the table will be

If luminous efficiency of lamp is $\mathrm{z} \raisebox{1ex}{$\mathrm{lumen}$}\!\left/ \!\raisebox{-1ex}{$\mathrm{watt}$}\right.$ and its luminous intensity is $42$ candela. Then power of the lamp is

A perfectly reflecting mirror has an area of $1{\mathrm{cm}}^2$. Light energy is allowed to fall on it for one hour at the rate of $10\mathrm{W} {\mathrm{cm}}^{-2}$. The force that acts on the mirror is

A beam of light is generated by a laser is called-

The ray from the sun is an example of a parallel beam of light.

Differentiate between ray optics and wave optics.

What do you understand by the term "optics"?

Name the branch of physics which deals with the formation of images by mirrors and lenses.

Choose the correct word from the following:
(straight, curved)
Light travels in a _____ line.

What is the speed of light?

Fill in the following blanks with suitable words:

 The image which cannot be projected onto a screen is called_____image.