Physics-
General
Easy
Question
A point mass m is suspended from a light thread of length l, fixed at O, is whirled in a horizontal circle at constant speed as shown. From your point of view, stationary with respect to the mass, the forces on the mass are :
The correct answer is:
Related Questions to study
physics-
Figure shows four paths for a kicked football. Ignoring the effects of air on the flight, rank the paths according to initial horizontal velocity component, highest first :
Figure shows four paths for a kicked football. Ignoring the effects of air on the flight, rank the paths according to initial horizontal velocity component, highest first :
physics-General
Physics-
A stone is just released from the window of a train moving along a horizontal straight track. The stone will hit the ground following :
A stone is just released from the window of a train moving along a horizontal straight track. The stone will hit the ground following :
Physics-General
Physics-
Two racing cars of masses m1 and m2 are moving in circles of radii r1 and r2 respectively. Their speed are such that each makes a complete circle in the same duration of time t. The ratio of the angular speed of the first to the second car is :
Two racing cars of masses m1 and m2 are moving in circles of radii r1 and r2 respectively. Their speed are such that each makes a complete circle in the same duration of time t. The ratio of the angular speed of the first to the second car is :
Physics-General
Physics-
A ball is projected with kinetic energy E at an angle of 45
to the horizontal. At the highest point during its flight, its kinetic energy will be :
A ball is projected with kinetic energy E at an angle of 45 to the horizontal. At the highest point during its flight, its kinetic energy will be :
Physics-General
Maths-
A fair die is tossed three times. Given that the sum of the first two tosses equals the third. The probability that at least one ‘2’ has turned up, is equal to
A fair die is tossed three times. Given that the sum of the first two tosses equals the third. The probability that at least one ‘2’ has turned up, is equal to
Maths-General
maths-
On a wall , a traiangle is drawn as shown in figure suppose you have thrown an arrow on the target triangle and it sticks at the interior of the triangle. If it sticks at a point P (x,y) with x<y, then you will win the game. The probability that you win the game ?
On a wall , a traiangle is drawn as shown in figure suppose you have thrown an arrow on the target triangle and it sticks at the interior of the triangle. If it sticks at a point P (x,y) with x<y, then you will win the game. The probability that you win the game ?
maths-General
Maths-
An integer from the set of first 100 natural numbers is selected at random .The probability that the number satisfying the inequality 
is
An integer from the set of first 100 natural numbers is selected at random .The probability that the number satisfying the inequality is
Maths-General
Maths-
A bag contains a large number of white and black marbles in equal proportions. Two samples of 5 marbles are selected (with replacement) at random. The probability that the first sample contains exactly 1 black marble, and the second sample contains exactly 3 black marbles, is
A bag contains a large number of white and black marbles in equal proportions. Two samples of 5 marbles are selected (with replacement) at random. The probability that the first sample contains exactly 1 black marble, and the second sample contains exactly 3 black marbles, is
Maths-General
Maths-
If A and B are two events such that, 
is equal to
If A and B are two events such that, is equal to
Maths-General
Maths-
Events A and C are independent. If the probabilities relating A, B and C are P (A) = 1/5; 
then
Events A and C are independent. If the probabilities relating A, B and C are P (A) = 1/5; then
Maths-General
Maths-
The number of ways in which we can choose 6 chocolates out of 8 different brands available in the market is
The number of ways in which we can choose 6 chocolates out of 8 different brands available in the market is
Maths-General
Maths-
If three one by one squares are selected at random from the chessboard, then probability that they form the letter 'L' is
If three one by one squares are selected at random from the chessboard, then probability that they form the letter 'L' is
Maths-General
Physics-
When a body is thrown with a velocity u making an angle q with the horizontal plane, the maximum distance covered by it in horizontal direction is :
When a body is thrown with a velocity u making an angle q with the horizontal plane, the maximum distance covered by it in horizontal direction is :
Physics-General
Maths-
The probability of selecting two small squares on a chess board having a contact at corner is
The probability of selecting two small squares on a chess board having a contact at corner is
Maths-General
Maths-
A bag contains some white and some black balls, all cominatitions of balls being equally likely. The total number of balls in the bag is 10. If three balls are drawn at random without replacement and all of them are found to be black, the probability that the bag contains 1 white and 9 black balls is
A bag contains some white and some black balls, all cominatitions of balls being equally likely. The total number of balls in the bag is 10. If three balls are drawn at random without replacement and all of them are found to be black, the probability that the bag contains 1 white and 9 black balls is
Maths-General
