A) Concave and convex mirrors B) Conflict and complex mirror C) Artificial and natural mirror D) Concrete and cornered mirror
A) Principal focus B) Radius of curvature C) Pole D) Principal axis
A) Principal focus B) Principal axis C) Center of curvature D) Pole
A) Image height B) Magnification C) Object distance D) Image distance
A) The image formed is real B) The image formed is diminished C) The image formed is same size as object D) The image formed is inverted
A) Reflection B) Refraction C) Magnification D) Refractive index
A) Linear and circular prism B) Rectangular and triangular prism C) Longitudinal and transverse prism D) Concave and convex prism
A) Beat B) Tone C) Noise D) Echo
A) Wave method B) Echo method C) Resonance tune method D) Stationary method
A) Ripple B) Tone C) Loudness D) Pitch
A) Tone B) Loudness C) Pitch D) Ripple
A) It has long wave length B) It is transverse C) It can travel through a vacuum D) It has short wave length
A) Retina B) Schroid C) Choroid D) None of the above
A) They are mechanically operated B) They work naturally C) They have fixed focal length D) They work on the process of refraction
A) Light wave B) Electromagmetic wave C) Logic wave D) Sound wave
A) Radio wave B) Visible light C) X-ray D) Infrared radiation
A) Radio wave B) Gamma ray C) Beta ray D) Alpha ray
A) Long B) Open C) Closed D) Short
A) Voltage B) Resonance C) Current D) Resistance
A) Electric pole B) Electric line C) Electric circuit D) Electric flux |