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