801 To measure the speed of an approaching car a police officer shines? Physics Medium Full question → A light waves on it B microwaves on it C radio waves on it D ultra high frequency waves on it
802 A photostat machine works on _____________? Physics Medium Full question → A electromagnetic image making B magnetic image making C thermal image making D electrostatic image making
803 The owl can see most clearly in total darkness because: Physics Medium Full question → A it has squint eyes B it has light bulbs in its eyes provided by nature C it produces infrasonic sounds D it has large eyes with orbs directed forward, giving it binocular sight
804 The audio signals of TV are _____________? Physics Medium Full question → A Amplitude modulated B Frequency modulated C fixe modulated D Velocity modulated
805 Which of the following statements is true when we see ‘rainbow’ ? Physics Medium Full question → A We face sun and raindrops B The Sun remains behind us and we face raindrops C In light rainfall, we face Sun D The sky remains clear and the sun is at lower position in the sky
806 Rain drops fall from great height Which among the following statements is true regarding it? Physics Medium Full question → A they fall with that ultimate velocity, which are different for different droplets B they fall with same ultimate velocity C their velocity increases and they fall with different velocity on the earth D their velocity increases and they fall with same velocity on the earth
807 Why the needle of iron swims on water surface when it is kept gently ? Physics Medium Full question → A It will remain under the water, when it will displace more water than its weight B the density of needle is less than that of water C due to surface tension D due to its shape
808 Which of the following are not deflected by electric and magnetic fields ? Physics Medium Full question → A Alpha rays B Beta rays C Gamma rays D None of these
809 The value of acceleration due to gravity is minimum on which of these planets? Physics Medium Full question → A Mars B Jupiter C Mercury D Neptune
810 The value of R ( Universal Gas Constant ) = ___________? Physics Medium Full question → A 8.314 J/mole K B 6.5 J/mole K C 1.314 J/mole K D 10.314 J/mole K
811 Mirage is an example of ___________? Physics Medium Full question → A reflection of light B refraction of light C Refraction and total internal reflection of light D Scattering of light
812 A Circle has a number of tangents equal to _________? Physics Medium Full question → A 0 B 1 C 2 D Infinite
814 In fission process_______. Physics Medium Full question → A massive nucleus join together B massive nucleus splits to form smaller fragments C both A & B D None of these
815 What is the acceleration of free fall on the moon of that on the Earth ? Physics Medium Full question → A 1/6th B 1/4th C 1/8th D None of these
817 The Capacity of doing work is called_________? Physics Medium Full question → A Work B Energy C Power D Momentum
818 What is the force of attraction between any two bodies by virtue of their masses is called? Physics Medium Full question → A Electromagnetic Force B Gravitational Force C Centripetal Force D Nuclear Force
819 By how many times are the Electrostatic forces stronger than the Gravitational Forces for a fixed distance? Physics Medium Full question → A 10 2 B 1036 C 10 12 D None of these
820 If we look at the floating piece of iceberg on the sea, approximately what fraction of it is visible above the seawater level? Physics Medium Full question → A 1/6th B 1/8th C 1/10th D None of these