Why do you fall in the forward direction when a moving bus brakes to a stop and fall backwards when it accelerates from rest?

Passengers in a bus fall back as it accelerates. Why?

Why does a pilot not fall down when his aeroplane takes .a vertical loop?

When a body accelerates by erf, what is the velocity after time T, when it starts from rest?

• Take a thick sheet of cardboard and make a small hole or narrow slit in its middle. • Allow sunlight to fall on the narrow slit. This gives a narrow beam of white light. • Now, take a glass prism and allow the light from the slit to fall on one of its faces as shown in Fig. • Turn the prism slowly until the light that comes out of it appears on a nearby screen. What do you observe? You will find a beautiful band of colours.

What do you observe when adsorption takes place from solution phase.

Describe the effect on passenger when a moving bus suddenly changes its direction of motion.

We do not see an interference pattern when light from two identical electric bulbs falls on a white wall. Give reasons.