Question
Which of the following Instrument is used to measure
rate of fluid, works on Bernoulli’s theorem?Solution
A venturimeter is a device used for measuring the rate of flow of a fluid flowing through a pipe.The working of venturimeter is based on the principle of Bernoulli’s theorem. It states that in a steady, ideal flow of an incompressible fluid, the total energy at any point of the fluid is constant. The total energy consists of pressure energy, kenetic energy and potential energy or datum energy.
In a lottery, there are 12 prizes and 16 blanks. A lottery is drawn at random. What is the probability of getting a prize?
What is the probability that a number selected from 1,2,3.......................68,69,70, is perfect square or a perfect cube?
A bag contains only red and blue balls. The probability of drawing a red ball from the bag is 3/5. If 4 more blue balls are added to the bag, the probab...
- A jar contains five 25 paise coins, ten Rs. 1 coins, and ten Rs. 5 coins. One coin was accidentally dropped and lost. Find the probability that the lost co...
- A boy attended 5 lab evaluations, each having a total of 100 marks. His scores were 88, 76, 92, 81, and 70. He randomly reveals one of the scores to his fr...
In a group of artists, there are 10 dancers and 8 singers. If four artists are to be selected at random, what is the probability that 2 dancers and 2 si...
There are (m + 6) red roses, (m + 10) white roses and ‘m’ pink roses in a bag. If the probability of picking a pink rose is 5/23, then find the valu...
A box contains 6 blue shirts, 7 yellow shirts and 9 pink shirts. In how many ways can 4 shirts be drawn from the box, if at least one blue shirt, one ye...
A bag has x blue balls and 4 yellow balls. If the probability of picking a blue ball is 3/5, find the probability that two balls drawn at once are of di...
A bag contains 18 black and 20 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?