Question
Write laws of reflection.

Answer

→(i) The angle of incidence and the angle of reflection are same. (i = r)
(ii) The incident ray, reflected ray and the normal to the reflecting surface at the point of incidence lie in the same plane. This plane is called the plane of incidence.
(iii) The incident ray and reflected ray lie on opposite sides of the normal.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Draw a circuit diagram using a metre bridge and write the necessary mathematical relation used to determine the value of an unknown resistance. Why cannot such an arrangement be used for measuring very low resistances?
Is it necessary to have two waves of equal intensity to study interference pattern? Will there be an effect on clarity if the waves have unequal intensity?
What does the red shift in the spectrum of a galaxy indicate?
Name the logic gate which can be realised by using a p-n junction diode in the given diagram. Give its logic symbol and write the truth table. Name the gate which will be obtained by combining with a NOT gate.
Why is exposure to X-rays injurious to health but not exposure to visible light, when both are electromagnetic waves?
Write down the definition of energy density and derive the equation of energy density of electric field.
Answer the following question:
Does the apparent depth of a tank of water change if viewed obliquely? If so, does the apparent depth increase or decrease?
A solid sphere of radius 5cm floats in water. If a maximum load of 0.1kg can be put on it without wetting the load, find the specific gravity of the material of the sphere.
A platinum resistance thermometer reads $0^\circ$ when its resistance is $80\Omega$ and $100^{^\circ }$ when its resistance is $90\Omega$. Find the temperature at the platinum scale at which the resistance is $86\Omega.$
Consider a 10cm long portion of a straight wire carrying a current of 10A placed in a magnetic field of 0.1T making an angle of 53° with the wire. What magnetic force does the wire experience?