2 Powerful Websites जो आपके Bohot Kaam आयेगी ! #shorts

What is the power of the lens, if the far point of a short- sighted eye is 200 cm?

(a) What is short-sightedness ? State the two causes of short-sightedness (or myopia). With the help of ray diagram, show : (i) the eye-defect short-sightedness. (ii) correction of short-sightedness by using a lens. (b) A person having short-sight cannot see objects clearly beyond a distance of 1.5 m. What would be the nature and power of the corrective lens to restore proper vision ?

Dev can hit a target 3 xx in 6 shorts Pawan can hit the target 2 xx in 6 shorts and Lakhan can hit the target 4 xx in 4 shorts. What is the probability that at least 2 shorts hit the target (2)/(3) (b) (1)/(3) (c) (1)/(2) (e) None of these

Statement-I : For the same antenna length, power radiated by short wavelength signals would be large. Statement-II : Because power radiated prop (1)/(lamda^(2))

Which of the two has a greater power, a lens of short length or a lens of large focal length?

A lens of power +2 dioptres is placed in contact with a lens of power -1 dioptre. The combination will behave like

Power set of the set A = {1,2} is "………"