The real image of an object formed by a converging lens of focal length 15cm, is three times the size of the object. Calculate the object distance

Similar Questions

Which of the following phenomena causes capillary of liquids in tubes of narrow bore? ...

A boy in a barber's shop sits between two parallel mirrors. The number of images observed by him...

Two lamps are rated 40W and 220V each are connected in series. The total power dissipated in both la...

Which of the following correctly explain(s) why a green leaf appears green in bright day light? i...

A block of aluminum is heated electrically by a 25 W heater. if the temperature rises by 10°C in...

A body of mass 2kg moving vertically upwards has its velocity increased uniformly from 10ms-1 to 40m...

How many grams of water at 17oC must be added to 42g of ice at 0oC to melt the ice completely? [spec...

If the threshold frequency for tungsten is 1.3 x 1015Hz, what is its work function? [H = 6.6 x ...

A boat is rocked by waves of speed 30ms-1 whose successive crest are 10m apart. Calculate the rate a...

Which of the following statements is not an advantage of an alkaline accumulator? ...