NEET Test 187

Result

NEET Test 187

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Weekly Quiz Competition

Question 1
4 / -1

An infinite line charge produces a field of 9 × 10⁴N/C at distance of 2 cm. Calculate the linear charge density.

A
12μC/m

B
10μC/m

C
11μC/m

D
9μC/m

Solution
Question 2
4 / -1

In a series LCR circuit the RMS voltages across the inductance, capacitance and resistance are respectively 4 V,8 V and 5 V. The RMS voltage of the AC source in the circuit is:

A
17 V

B
13 V

C
5 V

D
6.4 V

Solution
Question 3
4 / -1

'Khaira' disease of rice is caused due to deficiency of

A
Boron

B
Zinc

C
Magnesium

D
Copper

Solution

Until very recently zinc deficiency of the rice plant had not been shown to occur in the field. Y. L. NENE was the first to show that a foliar application of zinc sulfate corrects a disorder of the rice plant long known as Khaira disease in North-Central India.
Question 4
4 / -1

Transmission media used in low frequency band are

A
Air

B
Water

C
Copper cable

D
All of the above

Solution

A transmission medium is something that can mediate the propagation of signals for the purposes of telecommunication. Signals are typically imposed on a wave of some kind suitable for the chosen medium. For example, data can modulate sound and a transmission medium for sounds may be air, but solids and liquids may also act as the transmission medium.
Question 5
4 / -1

Which one of the following is the most widely accepted method of contraception in India, at present?

A
Cervical caps

B
Tubectomy

C
Diaphragms

D
IUDs (Intra Uterine Devices)

Solution

At present, the most widely accepted method of contraception in India is IUDs (Intra Uterine Devices). These devices are effective and popular these devices are inserted by doctors and expert nurse in the uterus through vagina.
Question 6
4 / -1

Which of the following statements is not correct according to molecular orbital theory?

A

B

C
Bond strength of N₂ is the maximum amongst the homonuclear diatomic molecules belonging to the second period.

D
Be₂ and Ne₂ are unstable molecules.

Solution
Question 7
4 / -1

A simple pendulum of length l has a brass bob attached at its lower end. Its period is T. If a steel bob of same size, having density x times that of brass, replaces the brass bob and its length is changed so that period becomes 2T, then new length is

A

B

C
4 x

D

Solution

Time period depends only on effective length. Density has no effect on time period. If length made 4 times then time period becomes 2 times.
Question 8
4 / -1

A particle of charge q moves with a velocity where a,b and c are constants. The magnitude of the force experienced by the particle is

A
Zero

B

C

D
None of these

Solution

Force on the moving charged particle due to magnetic field
Question 9
4 / -1

If 1000ml of gas A at 600 torr and 500ml of gas B at 800 torr are mixed in a 2 litre flask, the pressure of the mixture at constant temperature will be:

A
500 torr

B
1000 torr

C
850 torr

D
2000 torr

Solution
Question 10
4 / -1

The surface of a metal is illuminated with the light of 400 nm. The kinetic energy of the ejected photoelectrons was found to be 1.68eV. The work function of the metal is: (hc = 1240eVnm)

A
3.09eV

B
1.42eV

C
1.51eV

D
1.68eV

Solution