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