Indian Air Force Agniveer Science & Other than Science Mock Test - 9 - Indian Air Force Agniveer Vayu MCQ

Among all these 4 forces the Strong nuclear force also called strong nuclear interaction is the strongest one in comparison of the other three.

• It is because it binds the fundamental particles of any matter together to form larger particles.
• Fundamental particles mean protons and neutrons.
• Quarks are made up of protons and neutrons and this strong nuclear force holds together the quarks.
• The strong nuclear force also binds the proton and neutrons to the nucleus of the atom.
• Also, a small strong force acts between protons and neutrons.
• As protons repel each other due to having the same charges, the strong forces also keep them together.

This strong force will operate only when the subatomic particles are extremely close to each other, which is approximately 10^-15.

So, like this, the strongest fundamental force is nature keeps nature balanced by keeping the matter in a stable form.

Additional Information: In nature, there are 4 fundamental forces. Every fundamental force plays vital importance to drive nature smoothly and knowingly or unknowingly we experience them in everyday life. A force is weak or strong which depends on the type of force it is having fundamentally.
The 4 fundamental forces are:
1. Gravitational force
2. The weak force or the weak nuclear force
3. Strong nuclear force or the strong nuclear interaction
4. Electromagnetic force 

No external force is acting, there fore, momentum is conserved.
By momentum conservation, 50u + 0.5 × 2 = 0 where u is the velocity of man.

Negative sign of u shows that man moves upward.
Time taken by the stone to reach the ground

∴ when the stone reaches the floor, the distance of the man above floor = 10.1 m

Average acceleration

< a > = 5 m/sec²

The situation is as shown in the figure.

p_initial = mu,p_final = −mu
Impulse imparted to the ball = change in momentum = p_initial = mu,p_final
 = −mu − mu = −2mu

(t₁ = 1 minute; t₂ = 30 second given)

When liquid molecules are attracted strongly to themselves and weakly to those of solids, it costs lots of energy to create liquid-solid surface and liquid then does not wet the solid.
For Example: Mercury molecules (which make an obtuse angle with glass) have a strong force of attraction between themselves and a weak force of attraction toward solids. Hence, they tend to form drops. 
On the other hand, water molecules make acute angles with glass. They have a weak force of attraction between themselves and a strong force of attraction toward solids. Hence, they tend to spread out.

In the given graph temperature remains constant with variation in volume. So the process is isothermal and PV = constant.

First law of thermodynamics is based on law of conservation of energy i.e. energy supplied to a system has to be used in raising the internal energy of the system. So heat supplied is used to carry out the process.
∆U = Q + W.

Interference occurs for both transverse and longitudinal waves.
Interference does not indicate whether light is transverse or longitudinal since interference occurs for both types of waves.

The long straight wire and side AB  carry current in the same direction, hence will attract each other.
The long straight wire and side CD carry current in the opposite direction, hence will repel each other.
Force on side BC  will be equal and opposite to force on side DA.
Since CD  is farther from the wire than AB,  the force of attraction on  AB  will exceed the force of repulsion on CD.
Hence, there will be a net force of attraction on the loop ABCD and it will move towards the wire.

Light is refracted when it crosses the interface from air into glass in which it moves more slowly. Since the light speed changes at the interface, the wavelength of the light must change, too. The wavelength decreases as the light enters the medium and the light wave changes direction

Φ= hνλ => 2eV= 6.626 x 10^-34 x ν

2 x 1.6 x 10^-19= 6.626 x 10^-34 x ν

On solving we get ν = 4.6 x 10¹⁴ Hz.

The atomic number or proton number (symbol Z) of a chemical element is the number of protons found in the nucleus of every atom of that element. The atomic number uniquely identifies a chemical element. It is identical to the charge number of the nucleus

The equation of the line which passes through the point (1, 2, 3) and is parallel to the vector  Let vector   and vector 

9(2x+5) - 3(5x+2) = 0
18x+45-15x-6 = 0
3x = -39
x = -13

Given, Point A (2,-3,7)

Point B (1,3,-4)

Let vector in the direction of AB be C.

∴ C = B - A

⇒ (1,3,-4) - (2,-3,7)

⇒ ( 1-2 , 3+3 , -4-7 )

⇒ (-1,6,-11)

⇒ -1i + 6j -11k
Magnitude of vector C
|C| = √(-1)² + 6² + (-11)²
⇒ √1+36+121
⇒ √158

Unit vector = (Vector)/(Magnitude of vector)
Unit vector C = (C vector)/(Magnitude of C vector)  = (-1i + 6j -11k)/√158

The relationship between the mean, quartile and the standard deviation are as follows:
Mean Deviation is the mean of all the absolute deviations of a set of data.
Quartile deviation is the difference between “first and third quartiles” in any distribution.
Standard deviation measures the “dispersion of the data set” that is relative to its mean.
Mean Deviation = 4/5 × Quartile deviation
Standard Deviation = 3/2 × Quartile deviation

Correct option is B. Natural

The error is in part 2. The correct correlative conjunction to use with "No sooner" is than, not "when".

The sentence should be: "No sooner did I open the door than the rain, heavy and stormy, rushed in." Using "when" after "No sooner" is grammatically incorrect.

For example: "No sooner had I reached the station than the train departed.

" Therefore, replace "when" with "than" in part 2 to correct the sentence.

This statement is wrong: If a man diligently seeks to come into the contact

Correct Statement will be: If a man diligently seeks to come into contact.

 A far cry: A long distance away from something.

All four sentences given talk of the painter Magritte. Sentence D is the only one that states his full name: René Magritte. So, this is the starting sentence of the paragraph.

Sentence D describes the painting, "“The Treachery of Images". Now, both C and A refer to the painting: C states what inspired Margritte "in painting this", while A states what Margritte achieved with the help of his iconic painting. But clearly, the pronoun reference--this-- in C relates to the painting described in D. So, C follows immediately after D.

Now, Sentence B states what Magritte wanted to prove, whereas A states what he did prove with his painting. So, A follows B.

DCBA is the right order.

The question is " Arrange the sentences in the correct order "
The order is DCBA

Hence, the answer is DCBA
Choice D is the correct answer.

Refer to:

‘Most of these outfits continue to adopt earlier methodologies. These have proved no less effective than those followed by the IS. The terror attack on a mosque in North Sinai, Egypt in November this year, which killed over 230 persons, is one such example. In December, the TTP was responsible for a terror attack on an agricultural training institute in Peshawar, Pakistan. Differences among terror outfits, do not, however, preclude a complicated pattern of relationships when it comes to operational aspects.’

As per the highlighted fragments, statement I is incorrect.
Statement II is correct.
Statement III is nowhere mentioned in the passage.

Hence, option A is correct.

National Highway 2, commonly referred as Delhi-Kolkata Road, is a busy Indian National Highway that runs through the states of Delhi, Haryana, Uttar Pradesh, Bihar, Jharkhand, and West Bengal. It constitutes a major portion of the historical Grand Trunk Road along with NH 91 and NH 1 in India.  

After offering a discount of 40%:
SP = 0.6 MP = 0.6 (1.4 C.P) = 0.84 CP
Loss = CP - SP
Loss = CP - 0.6 (1.4)
CP = CP - 0.84 CP = 0.16 CP
Therefore, there will be 16% loss.

Start-up 20 Engagement Group to be set up under India's G20 Presidency.