A) Tube light B) Neon lamp C) Sodium lamp D) GSL lamp. Ans : (B)
A) No power B) About 25 to 30 W power C) About 15 to W power D) About 5 to 7 W power. Ans : (D)
A) 3655o K B) 2655o K C) 2500o K D) 2000o K. Ans : (A)
A) absorption of red light by the lamp radiation B) absence of red light from lamp radiation C) colour mixing D) high wavelength of red objects. Ans : (B)
A) lower voltages B) higher voltages C) lower frequencies D) higher frequencies. Ans : (C)
A) 100 hours B) 200 hours C) 1000 hours D) 10000 hours. Ans : (C)
A) Carbon arc lamp B) Sodium lamp C) Mercury vapour lamp D) Incandescent lamp. Ans : (A)
A) 112 volts B) 100 volts C) 50 volts D) 5 volts. Ans : (D)
A) 220 per second B) 100 per second C) 50 per second D) 25 per second. Ans : (B)