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