Question
The position, relative size and nature of the image
formed by a concave lens for an object placed at infinity are respectivelyÂSolution
From the ray diagram, it is very clear that the image of the object placed at infinity from a concave lens is virtual diminished and at the focus of the lens. F Concave lens Rays from the object placed at infinityÂ
The HCF of two numbers is 12. Which one of the following can never be their LCM?
If total number of factors of 3,240 is 'x', then find the value of (x - 3)(x + 5).
Three streetlights flash together. Each of them then flashes after 0.35 seconds, 0.2 seconds, and 0.105 seconds respectively. After how many seconds wil...
If Ashish has 3 types of pens in a ratio 4 : 6 : 5 such that their LCM is 360, then find the sum of the highest and lowest number of pens that he has?
The HCF and LCM of the two numbers are 225 and 360 respectively. When the first number is divided by 3, the quotient is 20. The other number is.
Three numbers are in the ratio 5:6:9 respectively. If the HCF of the numbers is 2, then find the LCM of the numbers.
The ratio between three numbers is 7:3:2. Their HCF is given to be 5. Determine the LCM of the numbers.
The smallest number which when divided by 28 and 32 leaves remainder 10 and 14 respectively is:
LCM of two prime numbers 'x' and 'y' is 437 where x < y. Find the value of 'y'.
Find the least common multiple of (28/42), (35/49), and (14/21).
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