If x = sin-1 (3t – 4t3) and y = cos-1 √(1-t2), dy/dx is equal to
(1) 1/2 (2) 2/3 (3) 1/3 (4) 2/5 Solution: Given x = sin-1 (3t – 4t3) Put t = sin... View Article
Latest Posts
For y = x/(x2-1), dny/dxn is equal to
For y = x/(x2-1), dny/dxn is equal to (1) (½) (-1)n n![ 1/(x-1)n+1 + 1/(x+1)n+1] (2) (½) n![ 1/(x-1)n+1– 1/(x+1)n+1]... View Article
At which point or points is the electric field zero
For unlike charges, the electric field is zero outside of the smaller magnitude charge. For like charges, the electric field... View Article
Is 0 True or false
Zero (0) is used to represent false and one (1) is used to represent true in Boolean algebra
Why is AC power used instead of DC
The alternating current can be transmitted over a great distance. The transformers can be used to reduce the voltage of... View Article
What is on the other side of a Blackhole?
Beyond the event horizon, the gravity is extremely high and anything that enters the black hole can never escape. There... View Article
How many volts can a diode handle
The forward voltage of a silicon diode is approximately 0.7 volts and for a germanium diode, it is 0.3 volts.... View Article
Why does the depletion layer increase in reverse biasing
When the diode is reverse biased the majority charge carriers are pushed away from the junction and more ions are... View Article
What does Young’s experiment prove?
In Young’s double-slit experiment, interference of the waves caused due to the overlapping of the waves was observed. Thomas Young... View Article
How does the fringe spacing change when the distance between the slits D is increased
The fringe spacing is called the bandwidth. The bandwidth is given by the formula β = λD/d λ is the... View Article
What would happen to the distances between bright spots intensity maxima on the screen if the spacing between the slits is doubled
The distance between two bright fringes is called the bandwidth. The formula for bandwidth is β = λD/d λ is... View Article
What is the difference between polarized and charged
When an object is polarised there will be a redistribution of the centres of the positive and negative charges within... View Article
Does light travel in wavy lines?
Light does not travel as wavy lines, it travels in a straight line. The particles are vibrated perpendicular to the... View Article
Where will be the centre of gravity of a uniform rod lies
The centre of gravity of a uniform rod will lie at the middle point. Centre of gravity is an imaginary... View Article
Is Young’s modulus stiffness
Yes, Young’s modulus is the measure of the stiffness of the object. In other words, the resistance of the object... View Article
What are the two faults in a potentiometer if balance point is not obtained
The potentiometer will not show the balanced point if the emf of the battery that has to be tested is... View Article
When an electron jumps from lower to higher orbit its energy
When an electron jumps from lower to higher orbit the energy of the electron increases. The extra energy required for... View Article
How did the Heisenberg uncertainty principle contribute to the atomic model?
According to the Heisenberg uncertainty principle, position and momentum of the atom cannot be determined simultaneously. The Heisenberg principle contradicted... View Article
Why can’t temperature go below absolute zero?
The temperature of a gas is determined by the chaotic movement of the particles. When the temperature reduces the particles... View Article
How many electrons are in a shell?
Each shell can hold only a specific number of electrons. The general formula to determine the number of electrons is... View Article
