Question
Find the diameter of the incircle of a triangle whose
semi-perimeter is 18 cm and area is 54 cm².Solution
ATQ,
Radius of incircle = Area of triangle / Semi-perimeter = 54 / 18 = 3 cm
Therefore, diameter of the incircle = 2 × 3 = 6 cm
This relationship between the angles of incidence and refraction and the indices of refraction of the two media is known as ________.
A rear-view mirror for driving is –
The splitting up of white light into seven colours on passing through a glass prism is called as
Which material has the lowest refractive index?
What is the pH of Urine ?
What type of image is always formed by a convex mirror?
The motion of a freely falling body is an example of ______________ accelerated motion.
Which of the following is/are NOT scalar quantities?
What is the SI unit of power?
The Atom Bomb dropped in Nagasaki is an uncontrolled nuclear fission made up of: