finding objects free games

In a game, a target is moving randomly on a vertical screen of length 8 m and height 9 m. A light source placed at 2 m in front of the board can be turned on with a switch. If the target is found with in the lighted portion of the screen a prize is won. Light is passed through a circle of..

Object at Infin..

When an object is placed at infinity, the rays coming from it are parallel to each other. Let us consider two rays, one striking the mirror at its pole and the other passing through the centre of curvature. The ray which is incident at the pole gets reflected according to the law of refl..

When an object is placed at infinity, the rays coming from it are parallel to each other. Let us consider two rays, one striking the mirror at its pole and the other passing through the center of curvature. The ray which is incident at the pole gets reflected according to the law of refle..

Here, we consider a ray of light which is parallel to the principal axis and another ray passing through the centre of curvature. The ray which is parallel to the principal axis passes through the focus and the ray which passes through the centre of curvature retraces its path. The reflected rays ..

The image is Formed at the focus Extremely diminished Virtual Erect ..

Which is an unfair game? => spinning a spinner with two unequal sections or spinning a spinner with equal sections or I don′t know. or Roll a dice. You win if you roll a 1 or 2. Your friend wins if he rolls a 1 or 2...

Which of the following games is fair? => Toss a coin thrice. You win if you get 3 heads and your friend wins if he gets at least one head or tail. or Roll a dice. You win if you roll a 1 or 2. Your friend wins if he rolls a 3 or 4. or I don′t know. or Put 5 red and 2 blue crayons in..