2cm
4cm
15cm
25cm
100cm
Correct answer is B
No explanation has been provided for this answer.
The image of an object placed at the center of the curvature of a concave mirror is
Inverted and magnified
at the principal focus
real and diminshed
Erect and virtual
at the center of the curvature
Correct answer is E
No explanation has been provided for this answer.
A hygrometer is an instrument used to measure
Dew point
Temperature
Relative density
Relative humidity
Vapour pressure
Correct answer is D
No explanation has been provided for this answer.
stores the steam for future use
prevents the steam from escaping
ensures that only dry steam gets into the calorimeter
allows condensed steam to go into the calorimeter
determines the quantity of steam used
Correct answer is C
No explanation has been provided for this answer.
1:3
3:1
3:7
7:3
15:8
Correct answer is A
No explanation has been provided for this answer.