Question
Suggest a method to produce a rainbow in your house.

Answer

A rainbow can be produced using a prism. Another way of producing a rainbow is to dip a mirror inside water, keeping it inclined along the wall of a tumbler. The light coming from water after reflecting from the mirror will give a rainbow.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Suppose the platform of the previous problem is brought to rest with the ball in the hand of the kid standing on the rim. The kid throws the ball horizontally to his friend in a direction tangential to the rim with a speed v as seen by his friend. Find the angular velocity with which the platform will start rotating.
What are uses of a velocity$-$time graph?
In an electric store heat keeps on coming out continously, yet its temperature becomes stable after some time. Why?
If two vectors of equal magnitude add to either of them by magnitude, what is the angle between them?
A water pump lifts water from a level 10m below the ground. Water is pumped at a rate of 30kg/ minute with negligible velocity. Calculate the minimum horsepower the engine should have to do this.
The antiseptics used for cuts and wounds in the human flesh have low surface tensions. Why?
Why a wrench of longer arm is preferred in comparison to a wrench of shorter arm?
Position $x$ dependents on time
$
x(t)=8+4 t-t^2
$
where distance is measured in meters and time in second. Find the value of instantaneous velocity of the particle at time $t=2 sec$.
Why gases at high pressure and low temperature show large deviation from ideal gas behavior?
A block of mass m is attached to two unstretched springs of spring constants $k_1$ and $k_2$ as shown in figure. The block is displaced towards right through a distance x and is released. Find the speed of the block as it passes through the mean position shown.