(4 + 3i)(4 – 3i) = ? where i = iota
a) 7
b) 16
c) 25
d) 35
If sinθ = 3/5 and cosθ = 4/5, then cos2θ = ?
a) 7/25
b) 9/25
c) 16/25
d) 0
General Science
Ohms law
explains the relation of:
a) Potential difference and current
b) Voltage and current
c) Resistance and voltage
d) Resistance and potential difference
During glide in air, birds take advantage of upward movement of air called as:
a) Thermal
b) Radiation
c) Convection
d) Conduction
The separation technique used to separate a volatile substance from non-volatile substance is called as:
a) Purification
b) Filtration
c) Distillation
d) Decontamination
