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