Question
The position, relative size and nature of the image
formed by a concave lens for an object placed at infinity are respectivelySolution
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 infinity
A is younger than B by 2 years. If the ratio of A and B ages is 5:7 respectively, then find the age of A.
If 7 years is subtracted from the present age of Rohit and the remainder is divided by 13, then the present age of his grandson Amit is obtained. If Ami...
- The current age ratio of Aman to Bhanu is 4:1. In six years, Aman’s age will be three times Bhanu’s age at that time. What is Aman’s present age?
The average of present ages of 'Emily', 'Frank', and 'George' is 25 years. Four years ago, the average of ages of 'Frank', 'George', and 'Harry' was 18 ...
After 4 years, the combined age of P and R will be 80 years. If their current age ratio is 7:5, find the age difference.
The current age of Sumit is 150% greater than Mohit's current age, while Punit's current age is double (100% more than) Mohit's current age. If the comb...
Which of the following is a video format?
The current age ratio of Riya to Renu is 4:7. In eight years, the combined age of Riya and Renu will total 93 years. What is Riya's current age?
Neha was married 5 years ago. In his present age 8/7 times of his age at the time of her marriage. Her son’s age is 1/8 times of her present age, ...
The ratio of the present ages of Ginni and Binni is 7:3 respectively. Ginni is ‘n’ years older than Binni. If after 5 years, the ratio of the ages o...
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