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