Asked by TimPhysics πŸš€

Why does light refract when it passes through two different mediums having different densities?

Josh Prince's profile photo


Josh Prince

I want to help you achieve amazing GCSE results!

The light beam slows down when it enters a more dense medium and speeds up when it enters a less dense medium. This means that when the light enters the medium one part of the light beam is travelling faster that the other and so it bends (refracts) away from the normal. If you need this explained in more detail feel free to send me a message

Josh also answered

Asked in Physics πŸš€

Asked by Umar

Physics πŸš€

What is the Doppler effect?

Hi! This article may help:

Asked by Jeniffer

Physics πŸš€

How long does it take for the earth to rotate on its axis?

It depends. The β€˜sidereal day’ is 23 hrs 56 mins (and a few seconds) - and that is the time for the stars to appear to revolve around us (remember t...

Asked by Immy

Physics πŸš€

If you accidentally drop a 50p coin (0.01kg) from the top of the shard (308m). How fast will it be t...

The mass of the body has no relevance in free fall. Anything falling to Earth accelerates at the same rate (in a vacuum) Using the formula v^2 = u^2...

Asked by Audrey

Physics πŸš€

Would the surface temperature. of stars classified as white dwarfs be generally higher or lower than...

It depends on the nature of the supergiant and the white dwarf. A new white dwarf might have a temperature of 100,000 kelvin so much hotter than any...

Asked by Liam

Physics πŸš€

How does gravity affect the solar system?

One thing is does is provide the centripetal force for circular motion around the sun. Which means gravity is the reason the planets don’t all drift...

Asked by Joshua

Physics πŸš€

How to do calculate the A) total resistance B) the current in each resistor C) the P.D across each r...

In parallel, the total resistance is found by using 1/total resistance = 1/R1 + 1/R2... so in this case 1/total resistance = 1/10 + 1/8 + 1/4. As th...

Asked by Kacey

Physics πŸš€

What is a summery of a resultant force acting on an object?

The official answer is β€˜the sum of forces acting on an object’ but what does that mean? A pair of opposite forces will have an effect on the movemen...

Asked by Jeniffer

Physics πŸš€

What is earth's history?

Hi Jeniffer, the Earth has a very long history that is difficult to summarise. A lot has happened in the past 4.5 billion years. Perhaps you need to...

Asked by Sehreen

Physics πŸš€

I have got a test on energy in physics and I do not understand it?

Hi Sehreen, This resource might help you revise for your test:

Asked by Umar

Physics πŸš€

Describe and explain the Doppler effect?

The Doppler effect (or the Doppler shift) is the change in frequency or wavelength of a wave in relation to an observer who is moving relative to th...

Find me a tutor

We take your privacy seriously. View our policy.

You may get a call in as little as five minutes, but definitely within 24 hours!