A) Upthrust B) Density C) Floatation D) Pressure
A) Upward B) Vector C) Vertical D) Scalar
A) U x P x g B) U/3 x P x g C) V/3 x P xg D) V x P x g
A) 180 N B) 150 N C) 200 N D) 210 N
A) 15 N B) 35 N C) 40 N D) 25 N
A) I & II only B) I only C) II & III only D) I & III only E) I, II & III
A) swims B) floats C) sinks D) dives
A) Quadruple B) Triple C) Dual D) Uniform
A) Colour B) Line C) Bulb D) Particle
A) Diffraction B) Reflection C) Refraction D) Dispersion
A) Dispersion B) Diffraction C) Interference D) Refraction
A) interference B) converging C) consructive D) diverging
A) R and F B) P and R C) P and F D) C and P
A) Real, inverted and diminished B) Real, inverted, enlarged C) Virtual, erect, enlarged D) Real, inverted and highly diminished
A) Negative B) Diminished C) Enlarged D) Positive
A) Camera B) Human eye C) Microscope D) Telescope
A) Lens B) Cornea C) Iris D) Pupil
A) Retina B) Cornea C) Sclera D) Ciliary muscles
A) Retina B) Pupil C) Sclera D) Cornea
A) Galaxy B) Orbit C) Constellation D) Field
A) Electric B) Vector C) Gravitational D) Scalar
A) Coulomb(C) B) Ampere(A) C) Joules(J) D) Watts(W)
A) Attract each other B) Repel each other C) Move randomly D) Do not interact
A) Radiation B) Friction C) Conduction D) Induction
A) Destroyed B) Invisible C) Created D) Conserved
A) Glass B) Rubber C) Copper D) Plastic
A) Plastic B) Aluminium C) Iron D) Silver
A) Shaking them B) Hitting strings C) Scraping surfaces D) Blowing air into them
A) Piano B) Drum C) Flute D) Guitar
A) A weak sound B) A direct sound C) A reflected sound D) A musical sound
A) Reflection of sound B) Refraction of sound C) Absorption of sound D) Diffraction of sound
A) Small rooms B) Large empty halls C) Water bodies onl;y D) Open fields
A) Carpet B) Curtains C) Foam D) Concrete wall
A) Presbyopia B) Hypermetropia C) Astigmatism D) Myopia
A) Long-sightedness B) Double vision C) Short-sightedness D) Blindness
A) Concave lens B) Convex lens C) Plane mirror D) Prism
A) Bifocal lens B) Concave lens C) Cylindrical lens D) Convex lens
A) Retina is damaged B) Lens become cloudy C) Eye becomes bigger D) Cornea disappears
A) Too much light B) Loss of elasticity of the lens C) Infection D) Dust
A) Lack of light B) Uneven curvature of the cornea C) Damage to optic nerve D) Weak retina |