A converging lens of focal length 15cm forms a virtual image at a point 10cm…
A converging lens of focal length 15cm forms a virtual image at a point 10cm from the lens.…
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In a compound microscope, the image formed by the objective lens is at a distance…
In a compound microscope, the image formed by the objective lens is at a distance of 3.0cm from…
A pulse of a sound is transmitted from a ship and the reflection from the…
A pulse of a sound is transmitted from a ship and the reflection from the sea bed is…
The size of the hole of a pin hole camera is increased. The resultant image…
The size of the hole of a pin hole camera is increased. The resultant image formed becomes A.…
In the wave equation y = Eo, sin(299t – (pi)), Eo represents the
In the wave equation y = Eo, sin(299t – (pi)), Eo represents the A. amplitude B. frequency C.…
A slinky spring fixed at one end is placed horizontally on a table. The free…
A slinky spring fixed at one end is placed horizontally on a table. The free end is displaced…
A radio wave has a wavelength of 150m. If the velocity of radio waves is…
A radio wave has a wavelength of 150m. If the velocity of radio waves is free spaces is…
Calculate the energy required to vapourise 50g of water initially at 80oC.[specific heat capacity of…
Calculate the energy required to vapourise 50g of water initially at 80oC.[specific heat capacity of water = 2260Jg-1K-1][specific…
What type of motion does the skin of a ‘talking’ drum perform when it is…
What type of motion does the skin of a ‘talking’ drum perform when it is struck with a…
The silver coating on the inside of a vacuum flask reduces heat loss by
The silver coating on the inside of a vacuum flask reduces heat loss by A. conduction B. radiation…