Question
Lambert's law is related
to–Solution
In optics, Lambert's cosine law says that the radiant intensity or luminous intensity observed from an ideal diffusely reflecting surface or ideal diffuse radiator is directly proportional to the cosine of the angle between the observer's line of sight and the surface normal. The law is also known as the cosine emissionlaw or Lambert's emissionlaw.
- Determine the smallest 5-digit number that is divisible by 16, 28, 32 and 40.
A two-digit number is 5 times the sum of its digits. If 9 is added to the number, the digits get reversed. Find the number.
When the digits of a two-digit number are interchanged, the new number becomes 5 less than 150% of the original number. If the sum of the digits is 10, ...
4096Â Â Â Â Â Â Â Â 2048Â Â Â Â Â 514Â Â Â Â Â 64Â Â Â Â Â Â Â Â Â Â 4
...Two students appeared in an exam and one secured 30 marks more than the other. If marks of the student who got more marks is 65% of the sum of the marks...
The sum of two numbers is 30 whereas the sum of their reciprocals is (5/12). Find the square of the product of the two numbers.
One-fourth of a number is 70. What will 40% of that number?
- 7643529 is divisible by which of the following numbers?
I. 3
II. 11 Four numbers P, Q, R, S satisfy: Q is 25% less than P, Q:R = 9:10, and R:S = 5:8. If the average of P, Q, R, S is 94, find (S – P).
- 25% of 36% of 960 = m + 21.6, find the total of squares of each digit in ‘m’.
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