Aconverging equiconvex lens of glass of refractive index 1.5 is laid on a horizontal plane mirror. a pin coincides with its inverted image when it is 1.0m above the lens. when some liquid is placed between the lens and the mirror, the pin has to be raised by 0.55m
for coacidence to occur again. what is the refractive index of the liquid?

hi,

what occurs during a solar eclipse?

there are small tides across earth.

the moon is between earth and the sun.

p.s. im not sure if the first answer is correct because during a solar ecliphse there are spring tides and i dont know if they are the same.

myth. it was once thought that animals, including cats and dogs, could only see in black and white. however, scientists have proven this to be a myth. in all animals, including humans, the perception of colour is determined by the presence of cells in the eye called cone photoreceptors.

explanation:

wheres the pic