Question

a concave lens have focal length of 25 cm . at what distance should the object from the lens be placed so that if it forms an image at 20cm distance from the lens also find the magnification produced by the lens ,

Answer 1

calculate the average range of minimum and maximum temperature of all the four cities.

in which city is the range minimum ? what can you infer from this

in which city is the range maximum? what can you infer this about its climate ?

based on the tempreture and rainfall of mumbai,comment upon its climate.

in which month does india experience the highest rainfall?

classify the cities as cities with rquable and extreme climates