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