Question
Which are the popular frequency ranges used in India for
Wi-Fi communication ?Solution
- Why Correct: Globally, Wi-Fi bands are 2.4 GHz and 5 GHz (ISM bands). India also follows this standard.
- Why Others are Wrong:
- 0.1 MHz / 0.5 MHz: Too low (used for AM).
- 0.1 GHz / 0.5 GHz: Not Wi-Fi.
- 2.4 MHz / 5 MHz: Wrong units, Wi-Fi operates in GHz.
A bag contains 3 black and 9 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?
...A bag contains 8 Green and 10 Red balls. One ball is drawn at random. What is the probability that the ball drawn is Red?
A bag contains 3 white balls , 5 blue balls , and 8 red balls . One ball is picked randomly from the bag and discarded. What is the probability of selec...
A box contains red, green, and blue balls. The probability of picking a blue ball at random is 1/4. The combined number of red and green balls is 15. If...
There are a total of 42 students (boys and girls) in a class. The probability of picking at least one boy when two students are picked from the class is...
A game consists of tossing three coins once and then rolling two dice. Find the probability of getting exactly one tail in the coin toss and a sum equal...
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...
Max has a 1/4 chance of failing his Quant test and a 4/5 chance of passing his Reasoning test. What is the probability that he fa...
- Raman has three children and he truthfully says, "at least one of my children is a girl." What is the probability that all of his children are girls?
- A bag contains x pink balls, (x + 2) blue balls and (x + 7) green balls. If probability of getting a blue ball is 1/9 more than that of getting a pink ball...
Relevant for Exams:
