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