^Sun appears red at Sun rise & sun set
^Sun appears red at Sun rise & sun set This is because at Sun rise & sun set light passes […]
Entries by kp-web-admin
^Dangers signals are made red
^Dangers signals are made red Danger signals, traffic lights etc. are made red. Red light being longest wavelength is scattered […]
^Sky appears blue
^Sky appears blue As blue colour has least wavelength, hence when white light encounters obstacles of size a << λ, […]
^Scattering of light
^Scattering of light When unpolarized light falls on a gas or air molecules light falling on air molecules. The electric […]
^Problem solving tips
^Problem solving tips If a particle is moving on a circular path with angular speed w about the center, then […]
^Kinematics of circular motion
^Kinematics of circular motion Suppose a particle is rotating anticlockwise in a circular path in xy plane. Its angular velocity […]
^Inclined plane projectiles
^Inclined plane projectiles
^Horizontal range
^Horizontal range Horizontal distance in the plane of projection is called horizontal range, it is Horizontal range is same for […]
^Time of flight
^Time of flight From point F.5. b (ii) we know vy = zero at projectile reaches its maximum height from […]
Describing velocity
^Describing velocity 4. Velocity of a projectile is defined as 5. Using v – t relation for the motion O […]
