An infinite long cylindrical conducting wire is kept parallel to uniform magnetic field along positive Zaxis.

Two non-reactive monoatomic ideal gases have their atomic masses in the ratio 2 : 3. The ratio of their partial pressures, when enclosed in a vessel kept at a constant temperature, is 4 : 3. The ratio of their densities is

1) 1 : 4
2) 1 : 2
3) 6 : 9
4) 8 : 9

For the circuit shown in figure, which of the following statement is true?

1) with S₁ closed V₁=15V, V₂ = 20 V

2) with S₃ closed V1=V₂ = 25 V

3) with S₁ and S₂ closed V₁ = V₂=0

4) with S₁ and S₃ closed V₁ = 30 V, V2=20 V

A vehicle travels a distance of 160 km in 5 hours. The average speed is
 
 (1) 32 km/hr
 (2) 40 km/hr
 (3) 80 km/hr
 (4) 165 km/hr

A coil has resistance 30 ohm and inductive reactance 20 Ohm at 50 Hz frequency. If an ac source, of 200 volt, 100 Hz, is connected across the coil, the current in the coil will be

1) 2.0 A
2) 4.0 A
3) 8.0 A
4) $$\frac{20}{\sqrt{13}}A$$

A projectile is fired into the air and 12.6 seconds later hits the ground. With what speed was the projectile fired into the air?
 1) 97.5 m/s
 2) 14.6 m/s
 3) 61.7 m/s
 4) 38.6 m/s

A ball of mass 0.2 kg is thrown vertically upwards by applying a force by hand. If the hand moves 0.2 m which applying the force and the ball goes upto 2 m height further, find the magnitude of the force. Consider g = 10 m/s²

1) 22 N
2) 4 N
3) 16 N
4) 20 N

 Ratio of voltages in a step up transformer is 8. If voltage at primary is 120 volt then the voltage at the secondary will be:

(1) 960 Volt             (2) 180 Volt

(3) 120 Volt             (4) 150 Volt

A mass M is attached to a spring, which oscillates with a period of 2s. If the mass is increased by 2 kg, the period increases by 1s. The initial mass M, assuming that Hooke\'s law is obeyed, would be:
1. 0.8 kg
2.1.6 kg
3.2 kg
4.2.4 kg

A car travels 90. meters due north in 15 seconds. Then the car turns around and travels 40. meters due south in 5.0 seconds. What is the magnitude of the average velocity of the car during this 20.-second interval?
 
 1) 2.5 m/s
 2) 5.0 m/s
 3) 6.5 m/s
 4) 7.0 m/s