BITSAT Practice Test - 21 - JEE MCQ

1 A and 20 V

2 A and 40 V

4 A and 80 V

8 A and 160 V

0.3%

1%

31%

3.125%

Lyman series is in the infrared region

Balmer series is in the visible region

Balmer series is in the ultraviolet region

Paschen series is in the visible region

Zero charge

Only positive charge

Only negative charge

Charge proportional to current ι

10 Ω

1 Ω

0.1 Ω

0.001 Ω

0.287/√V

12.27/√V

0.101/√V

0.202/√V

I

I/4

I/8

I/16

zero

qR/πε₀d²

q/2πε₀ [1/R − 1/√R²+d²]

q/4πε₀ [1/R − 1/√R²+d²]

VI

1/2 VI

1/√2 VI

Depends on the phase angle between V and I

p

2p

p/2π

2p/π

0.43

0.58

0.75

0.83

Infinity

√2gR

2√gR

Zero

Metal has high specific heat

Metal has high thermal conductivity

Metal has low specific heat

Metal has low thermal conductivity

1800^oC

162^oC

1527^oC

600^oC

Ampere-m

Ampere-m²

Weber

Web/m²

mass

speed

charge

magnetic field

10 N-m⁻²

20 N-m⁻²

40 N-m⁻²

80 N-m⁻²

16V

9 V

8V

2V

1.33 mm

1.33 cm

2.66 mm

2.66 cm

9.8 m

14.7 m

4.9 m

19.6 m

On a parabolic path as seen by pilot in the plane

Vertically along a straight path as seen by an observer on the ground near the target

On a parabolic path as seen by an observer on the ground near the target

On a zig-zag path as seen by pilot in the plane

2 rad-s⁻¹

4 rad-s⁻¹

8 rad-s⁻¹

16 rad-s⁻¹

3/2 g

g/3

2/3 g

g

short-sighted defect

long-sighted defect

bad vision due to old age

none of these

4 π s

2 π s

π s

0.5 π s

tanθ=σq/2ε₀mg

tanθ=σq/ε₀mg

T>2π√l/g

T=2π√l/g

For the secondary rainbow, rays undergo two TIR

Secondary rainbow is brighter than primary rainbow

In primary rainbow, red is inside and violet is outside

In secondary rainbow, violet is inside and red is outside

Cylinder

Ring

Solid disc

Solid sphere

τ = Iα

τ = Iω

I = τω

α = τω

10 π rad−s⁻¹

20 π rad−s⁻¹

40 π rad−s⁻¹

60 π rad−s⁻¹