Mass of bullet (m)= 20 g = 0.02 kg Initial velocity of bullet (u) =100 m/s Final velocity of... View Article
Forces applied by two friends are opposite in direction. The resultant force acting on box will be difference of the... View Article
Answer: The G (Universal Gravitational Constant) and g (Acceleration due to gravity) are distinct entities in physics. Acceleration due to... View Article
A wave is a disturbance that moves through a medium when the particles of the medium set neighbouring particles into motion.... View Article
The angle of dip, also known as the magnetic dip or magnetic inclination is the angle made by the Earth’s... View Article
An object moves with a uniform velocity when no net external force is acting on it.
Carbon is the basic chemical element present in fossil fuels.
It is caused due to turning of light around corners.
This statement is wrong. Force may or may not cause motion. If all the forces acting on a body are... View Article
Unequal and opposite forces acting on a body, which change its state of rest or uniform motion are called unbalanced... View Article
When you and your friend push a box in the same direction, it is easier to push the box because... View Article
Land and water are the primary resources in watershed management.
As the cart continued to be at rest after the application of force by the horses at the opposite ends,... View Article
Path difference Δx=√92+402−40=1 m Hence, phase change = δ = 2π/λ Δx = 2π/λ For the first maximum δ=2π/λ =2π Hence, λ=1 m Frequency=ν=v/λ =330 Hz
When two forces acting on a body are in opposite direction, the net force is the difference between two forces... View Article
Answer: (2) The junction becomes hot when the current flows from bismuth to antimony In 1834, Peltier discovered that when an electric... View Article
Here, I = 5A, V = 220 V. Resistance required in the circuit, R = V/I = 220V/5A = 44... View Article
At polarizing angle, the reflected and refracted rays are mutually perpendicular to each other.
When water is cooled from 4oC to 0oC, it will expand due to its anomalous behaviour.
Not correct as mass number should have reduced by 4 and not remained the same on Alpha emission Not correct... View Article
