What is refraction of light? Write down its laws. 4.
4. Answer the following questions after observing the
figure given below:
А
B
(1) What is the name of the coil AB which has man
circular turns of insulated copper wire.
(ii) State the nature of magnetic field inside AB when
current is passed through it.
(iii) Redraw the diagram and sketch the pattern
magnetic field lines through and around AB.
(iv) List two factors on which the strength of the
magnetic field produced by AB depends,
(v) What is the effect of placing an iron core in the
coil AB?
Answers
Explanation:
(a) Solenoid. (b) Uniform magnetic field. (d) (i) Magnitude of current flowing through it. (ii) Number of turns of a circular coil. (e
Laws of refraction state that: The incident ray refracted ray, and the normal to the interface of two media at the point of incidence all lie on the same plane. The ratio of the sine of the angle of incidence to the sine of the angle of refraction is a constant. This is also known as Snell's law of refraction.
In physics, refraction is the change in direction of a wave passing from one medium to another or from a gradual change in the medium. Refraction of light is the most commonly observed phenomenon, but other waves such as sound waves and water waves also experience refraction
A coil of many circular turns of insulated copper wire wrapped closely in the shape of a cylinder is called a solenoid. The pattern of the magnetic field lines around a current-carrying solenoid i