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Is Hair Negatively Or Positively Charged

When the balloon is rubbed on the hair, electrons move from the atoms in the hair to the balloon. Electrons... View Article

The typical design that converts rotational motion to linear motion is the slider-crank mechanism. The slider and the crank are... View Article

The vapour pressure of the liquid increases with an increase in temperature. When the vapour pressure becomes equal to the... View Article

The following are the different methods of coating: Dip coating Brushing Roll coating Spraying Spin coating Flow coating Stay tuned... View Article

A hydrogen bond is the chemical bond that is the easiest chemical bond to break. Stay tuned with BYJU’S to... View Article

Alkyl zinc is the Frankland reagent. Stay tuned with BYJU’S to learn more about other concepts such as Friedel-Crafts reaction.

If u and v are the two vectors, such that u x v = 0 then these two vectors will... View Article

A projection in which the range and the null spaces are in orthogonal subspaces is known as an orthogonal projection.... View Article

When the two vectors are in the same direction and have the same angle but vary in magnitude, it is... View Article

The following is the probability of rolling three sixes in a row: 1/6 x 1/6 x 1/6 = 1/216 Stay... View Article

1) y = 1 / 4 2) y = 4 3) y = 1 / 2 4) y = 2... View Article

1) tan-1 (4 / 3) 2) tan-1 (1) 3) 90o 4) tan-1 (3 / 4) Solution: (4) tan-1 (3 /... View Article

1) y = 0 2) x = 0 3) x + y = 0 4) None of these Solution: (1)... View Article

1) 0 2) 1/2 3) ∞ 4) –2 Solution: (1) 0 x = 3t2 + 1 dx / dt =... View Article

1) It makes a constant angle with the x-axis 2) It passes through the origin 3) It is at a... View Article

1) 2a 2) a / 2 3) √2a 4) a / √2 Solution: (3) √2a The length of the normal... View Article

1) dy / dx = 0 2) dy / dx = 1 3) dx / dy = 0 4) None... View Article

1) (0, 0) 2) (e, e) 3) (e2, 2e2) 4) (e–2, – 2e–2) Solution: (4) (e–2, – 2e–2) y =... View Article

1) a 2) 2a 3) 2√a 4) None of these Solution: (1) a √x + √y = √a (1 /... View Article

1) a = 2, b = –2 2) a = 2, b = – 4 3) a = 2, b... View Article