Which of the following quantities has the same unit as the watt?
Force x time
Force x distance
Force x acceleration
Force x velocity
Correct answer is D
No explanation has been provided for this answer.
no electron will be emitted
the few electrons emitted will have a maximum kinetic energy of 1eV
the few electrons emitted will have a maximum kinetic energy of 3eV
many electrons will be emitted
Correct answer is A
An electron can only be emitted if photon energy is equal or greater than work function of the plate
219 and 87
84 and 223
223 and 87
219 and 81
Correct answer is A
\(^{235}_{92}U\) \(\to\) 4\((^{4}_{2}\alpha)\) + 3\((^{0}_{-1}e)\) + \(^{b}_{a}y\)
a + (4 + 2) + (3x - 1) = 92 \(\Rightarrow\) a = 87
b + (4 x 4) + (3 x 0) = 235 \(\Rightarrow\) b = 219
\(^{b}_{a}Y\) = \(^{219}_{87}Y\)
If two parallel conductors carry currents flowing in the same direction, the conducts will
attract each other
repel each other
both move in the same direction
have no effect on each other
Correct answer is A
No explanation has been provided for this answer.
i and ii
i and iv
ii and iii
iii and iv
Correct answer is B
No explanation has been provided for this answer.