Question
What is the formula for
density?Solution
Density ρ = mass/volume Its unit is kg/m³ in SI system. More density means more compact particles. Used in identifying substances and designing ships.
Which of the following is caused due to the Newton’s first law of motion?
I. When a motorcar makes a sharp turn at a high speed, we tend to ...
From the given options, the speed of sound is highest in which material?
How does the angle of minimum deviation of a glass prism of refractive index 1.5 change, if it is immersed in a liquid of refractive index 1.25?
Which of the following statements is true for a conductor in an electric field?
A pulse of light duration 10-5 s is absorbed fully by a little object initially at rest. If the power of this pulse is 45 × 10-3...
What is the main difference between alternating current (AC) and direct current (DC)?
Which law states that energy can neither be created nor destroyed?
If lift is going up with acceleration, the apparent weight of a body is -
A block of mass 10 kg is on a horizontal table with friction coefficient μ = 0.2. A mass of 4 kg is suspended from a frictionless pulley attached to th...
A projectile is fired at an angle θ and reaches maximum height H and range R. The angle between velocity and acceleration at the highest point is:
