Question
Given below are two statements, one is labelled as
Assertion A and the other is labelled as Reason R Assertion A: Rayleigh scattering cause the sky to appear blue. Reason R: As most of the Rayleigh scatterers have sizeSolution
Both A and R are true and R is the correct explanation of A Rayleigh scattering is a phenomenon that occurs when the size of scatterers (particles or molecules) in the atmosphere is much smaller than the wavelength of the incident light.
Some balls are to be distributed among some boys. If 5 more balls are available, each boy gets 6 balls. If 3 less balls are available, each boy gets 3 b...
In an office, the ratio of the number of males to number of females is 11:8. If 3 males joined the class and 6 females left the class, then the ratio of...
Two numbers are in the ratio 5:3. After adding 4 and 7 to them respectively the ratio becomes 2:3. Find the bigger number.
In a college the ratio of boys and girls are in the ratio 3:4. 40% girls and 20% boys were absent. Find the girls present if the total number of student...
The incomes of A, B, and C are in the ratio 3:4:5, and their expenditures are in the ratio 2:3:4. If A saves ₹2,000, what is the income of C?
An integer 'p' is added to each of 8, 14, 30 and 40 so that the resulting numbers will be in proportion in given order only. Find the value of '(p + 4)'.
- Find the fourth proportion of (3k), (4k), and (6k). (Note: 'k' is the smallest two-digit prime number.)
Number of faculties in Physics and Biology in an institute is in the ratio of 5:8 respectively. If 120 more faculties join Physics, while 64 more facult...
Rs. 11200 was divided among A, B and C in the ratio 2:3:3. B kept Rs. 1000 for himself, gave Rs. 600 to his mother and divided the remaining money among...
The ages of A, B and C are in the ratio of 5:4:8 respectively. If the sum of their ages is 51 years, then find the age of B.
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