General Science

Q2121.A parsec, a unit of distance used to measure the distance related to the stars in the sky, is equal to

Q2122.Which of the following lens is used to minimize Myopia?

Q2123.PARSEC is the unit of

Q2124.When a person enters into a dark room from the strong light area, he is not able to see clearly for some time. Later he gradually begins to see things. This is because

Q2125.Which unit of measurement is multiplied by 0.39 to convert it to ‘inches’?

Q2126.Reading glasses are made from which type of lenses?

Q2127.How can the height of a person who is six feet tall, be expressed (approximately) in nanometre?

Q2128.The focusing in the eye is done by

Q2129.A nanometre is equal to

Q2130.Which one of the following statement is not correct?

Q2131.Ampere is the unit of

Q2132.The mirror, which is used in searchlights, is

Q2133.Megawatt is the measuring unit of power which is

Q2134.The least distance (in cm) of distinct vision in

Q2135.Which one of the following SI unit is not correctly matched?

Q2136.For normal eyes what is the minimum distance for clear vision?

Q2137.Which one of the following is not correctly matched?

Q2138.When beams of red, blue and green lights fall on the same spot, the colour of the light becomes

Q2139.How many watts are there in a horsepower?

Q2140.The change of focal length of an eye lense is caused by action of the