Q# 1 Encircle the correct option. /30
- Unit of frequency is __ .
a) Meter b)Hertz c) Crest d) Trough - Newton’s disk is made up of colours.
a) 5 b) 7 c) 9 d)15
3) colour of light refracts maximum.
a) Red b)Green c) Yellow d) Blue
4) Blue and Red colors makes color.
a) Magenta b) Cyan c) Yellow d) Green
5) is the flow of electric charges.
a) Voltage b) Electercity c) Insulation d) Conductors
6) _ is opposition to the flow of charges.
a) Voltage b) Current c) Resistance d) Insulation