Question
The path of a ray of light incident on an interface
separating two media is shown in the figure below. The refractive index of medium A with respect to medium B is equal to:Solution
The correct answer is C
There are 120 balloons of three different colours in a box. The ratio of red balloons to yellow balloons is 2:3, and the ratio of red balloons to green ...
Four numbers A, B, C and D are such that the ratio of A:B is 4:7 and ratio of B:C is 3:5. If the sum of A and D is 100 and sum of C and D is 146, then f...
If A:B:C = 3:5:7, then find the ratio of (3A + C) : (4B - 0.5C)
In a cricket match, five players contributed to the total runs. The ratio of runs scored by Dhoni to Raina is 5:4, and the total runs scored by all five...
- The ratio of science books to literature books in a library is 7:6. If the number of science books was 28 fewer and literature books 14 more, then the numb...
L’s income is 125 percent of M’s income and L’s expenditure is 120 percent of M’s expenditure. If L’s income is 180 percent of M’s expenditu...
- If, ‘x’ varies directly as ‘y’, and when x = 56, y = 28, then find the value of ‘x’, when ‘y’ = 40.
6 liters of milk are removed from a can full of milk and replaced with water. This process is repeated three more times. The ratio of the remaining milk...
- The number of boys and girls in a college is in the ratio of 6:5. If 12 boys were absent and 18 girls joined, their numbers would be equal. Determine the o...
- In a park, the ratio of adults to children is 7:5. If the number of adults was decreased by 21 and children increased by 14, then their numbers become equa...
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