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I have an infinite number of glass blocks stacked side by side. The first block has refractive index n1, the second n2 and so on, such that n1<n2...<n(infinity). I shine a light on the stack, what angle does the ray make to the normal on the last block?

This question tests your knowledge of the behaviour of light through different mediums. We know that when light travels from air through glass, it tends towards the normal. This is because the glass is de...

Answered by Alex C. Physics tutor
1664 Views

Define the different types of respiration.

Respiration is the process of transferring energy throughout cells within an organism. Energy is required for a lot of processes to take place in organisms such as: movement - for muscle contractions to t...

Answered by Sarah W. Biology tutor
2741 Views

Solve the following simultaneous equations to give a value for both x and y: 3x+3y=9 and 2x+3y=5

  1. Subtract the bottom equation from the top equation to get 3x-2x=9-5 (you don't see no y values in this equation as the y's have disappeared and cancelled eachother out as 3y-3y=0)2) So 3x-2x=9-5 equ...
Answered by Amy F. Maths tutor
2903 Views

How far does the application of new technologies explain the economic boom of the 1920s?

New technologies as well as mass production were central in causing the economic boom of the 1920s. Conveyor belt and moving assembly lines allowed mass production to take place following the introduction...

Answered by History tutor
2827 Views

Explain the process of DNA replication (6 marks).

The parental DNA is unwound from its double helix structure.DNA Helicase enzymes break hydrogen bonds between the bases of the parental DNA.DNA p...

Answered by Gerald H. Biology tutor
19314 Views

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