Users Also Read
MCQ's Search Engine
General Science
Chemistry
General Biology
Human Body
Ecosystem and Biosphere
Evolution
Science and Technology
Home⇒ Everyday Science GK⇒ Physics
Note:- You can add tough questions into your favourite list for second revision. |
Q61 ⇒ In which of the following industries is mica as a raw material? Electrical [other wrong options] [Discuss in forum] Cement Glass and Pottery Iron and Steel |
Q62 ⇒ Intensity of sound has an object existence [other wrong options] [Discuss in forum] a subject existence no existence both subjective and objective existence |
Q63 ⇒ Intensity of sound at a point is ____ its distance from the source. inversely proportional to square of [other wrong options] [Discuss in forum] directly proportional to inversely proportional to directly proportional to square of |
Q64 ⇒ Of the following natural phenomena, tell which one known in Sanskrit as 'deer's thirst'? Mirage [other wrong options] [Discuss in forum] Rainbow Earthshine Halo |
Q65 ⇒ Mach number is used in connection with the speed of aircraft [other wrong options] [Discuss in forum] sound spacecraft ships |
Q66 ⇒ Rain is falling vertically downwards. To a man running east-wards, the rain will appear to be coming from east [other wrong options] [Discuss in forum] west northeast southeast |
Q67 ⇒ Sound waves in air are longitudinal [other wrong options] [Discuss in forum] transverse electromagnetic polarised |
Q68 ⇒ Materials for rain-proof coats and tents owe their water-proof properties to surface tension [other wrong options] [Discuss in forum] viscosity specific gravity elasticity |
Q69 ⇒ The Raman Effect is used in the
study of Molecular energy [other wrong options] [Discuss in forum] X-rays Cells Chromosomes |
Q70 ⇒ Fish plates are used in railway
tracks To control speed of the train [other wrong options] [Discuss in forum] To avoid tracks being distorted
due to temperature fluctuation To connect two rails To keep the rails equidistant |
Q71 ⇒ An aeroplane is flying horizontally with a velocity of 600 km/h and at a height of 1960 m. When it is vertically at a point A on the ground a bomb is released from it. The bomb strikes the ground at point B. The distance AB is 3.33 km [other wrong options] [Discuss in forum] 1200 m 0.33 km 33 km |
Q72 ⇒ Metals are good conductors of electricity because they contain free electrons [other wrong options] [Discuss in forum] the atoms are lightly packed they have high melting point All of the above |
Q73 ⇒ Food is cooked quickly in a pressure
cooker because Boiling point of water is increased [other wrong options] [Discuss in forum] Boiling point of water is
decreased It absorbs heat quickly It retains heat for a long duration |
Q74 ⇒ In an earthen pot cooling of water
depends upon All of the above [other wrong options] [Discuss in forum] outside temperature atmospheric humidity wind |
Q75 ⇒ Radiocarbon dating technique is used to estimate the age of fossils [other wrong options] [Discuss in forum] rocks monuments soil |
Q76 ⇒ A fuse wire is used to prevent an unduly high electric current to pass through a circuit [other wrong options] [Discuss in forum] to make the electrical circuit
strong convert AC into DC convert DC into AC |
Q77 ⇒ A molecule is the smallest unit of a substance that retains the properties of the substance [other wrong options] [Discuss in forum] a class of organic compounds the spectrum of a substance a small mass |
Q78 ⇒ The nucleus of an atom consists of Protons and neutrons [other wrong options] [Discuss in forum] Protons + Electrons Only protons Protons + Neutrons + Electrons |
Q79 ⇒ A solid needle placed horizontally
on the surface of the water floats
due to surface tension [other wrong options] [Discuss in forum] capillary action cohesion adhesion |
Q80 ⇒ Effect of light on photocells
produces current [other wrong options] [Discuss in forum] energy photosynthesis None of these |
Or |