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