NSO - Mock Test - 3

The code is obtained by going two letters back in the original word.

C – 2 = A
O – 2 = M
U – 2 = S
N – 2 = L
T – 2 = R
E – 2 = C
R – 2 = P
Similarly
G – 2 = E
O – 2 = M
O – 2 = M
G – 2 = E
L – 2 = J
E – 2 = C
So the word becomes EMMEJC

ADVANCE is antonym for RETREAT
Similarly, FEEBLE is an antonym for STURDY.

According to the given information:
The father of Rohan's maternal uncle (cannot be paternal uncle as Suhana's father is the only son) → the maternal grandfather of Rohan and daughter of the maternal grandfather → mother of Suhana - her son - Rohan - Suhana's brother.

There are two series one is of even numbers starting from 14 and going up in 2s at odd positions and other is of odd numbers starting from 3.
14 + 2 = 16
16 + 2 = 18
so, 18 + 2 = 20
Similarly, 3 + 2 = 5
5 + 2 = 7
so, 7 + 2 = 9
So the series become
14, 3, 16, 5, 18, 7, 20 and so on.

According to the Newton's first law of motion, any object at rest, will remain at rest or in uniform motion, will remain in uniform motion until and unless an external force is applied on it. When we beat the carpet, carpet comes into motion and dust particles remain at rest due to the inertia of rest. This is why dust comes out of a carpet when it is beaten with a stick.

An athlete runs before jumping to gain momentum. Because it helps in jumping higher and longer because of inertia of motion gained due to the motion.

Gravitational force between the two masses is independent of the medium in between them.
So F' = F

This is because the stream of water rushing through the hose-pipe in the forward direction with a large speed exerts a large force on the hose-pipe in the backward direction. The force exerted on the hose-pipe in the backward direction is known as the reaction force. This reaction force tends to move the hose-pipe in the backward direction. Therefore, a fireman struggles to hold the hose-pipe strongly to keep it at rest.

When a speeding car takes a sharp turn, the centripetal force helps keep the car in its curved track. The part of passenger's body that is in contact with the car will be in its position due to frictional force.
The rest of the body of the passengers will experience a centrifugal force which is directed away from the center of the curved path.
So the passengers tend to fall sideways when a speeding car takes a sharp turn.

We know that

750 g = 0.75 kg

u = 15 m/s

Velocity of the ball at t = 1 sec.v = u + at v = 15 - 10 × 1 = 5 m/s

Hence, momentum of the ball at t = 1 sec is p = mv

p = 0.75 × 5 = 3.75 kgm/s

A stretched bow possesses elastic potential energy on the account of a change in its shape. To shoot an arrow, the bow is released. The elastic potential energy of the bow is converted into kinetic energy of the arrow.

P waves, or Primary waves, are the first waves to arrive at a seismograph. P waves are the fastest seismic waves and can move through solid, liquid or gas. They leave behind a trail of compressions and rarefactions on the medium they move through. So P waves are longitudinal waves.

Given :
d = 60 m
v = 330 m/s
To find : t = ?
We know that,
2d = v x t
or t = 2d ÷ v
t = 2 x 60 ÷ 330
t = 120 ÷ 330
t = 0.36 s

Matter is anything that has mass and occupies space.
Light is an electromagnetic wave and cannot be classified as matter, as it does not possess mass or occupy space.

Soda water has dissolved CO₂, which fizzes out when the bottle is opened. This is because the solubility of a gas is directly proportional to the pressure and so, the bottles are sealed under pressure. As soon as the pressure is released, the dissolved gases escape causing effervescence. Hence, CO₂ fizzes out and spreads into the atmosphere.

The rate of diffusion depends on the kinetic energy of the particles.
Since the molecules in the gaseous state possess the highest kinetic energy, they exhibit the highest rate of diffusion.
Kinetic energy of the molecules in the solid state is the least and hence, the rate of diffusion is the slowest in case of CuSO₄ crystal.

Dissolution is the process by which a solute forms a solution in a solvent.
Dissolution results in a homogeneous mixture, as the solute particles get uniformly distributed in the space between the particles of the solvent.

Colloids and suspensions are heterogeneous mixtures. Milk is a colloid and does not have a uniform composition throughout its volume.

All the other options are examples of true solutions and are homogeneous.

In order to liquefy the gases, the kinetic energy of the molecules must decrease and the intermolecular forces of attraction increase. Every gas has a critical temperature, at or below which it liquefies on increasing the pressure.
Hence, in order to liquefy the gases, the temperature should be decreased and the pressure should be increased.

Ernest Rutherford was a New Zealand-born British physicist who came to be known as the father of nuclear physics.

A prokaryote is a unicellular organism that lacks a membrane-bound nucleus (karyon), mitochondria, or any other membrane-bound organelle. Prokaryotes can be divided into two domains, archaea and bacteria. All the others are eukaryotes.

J. E. Purkinje in the year 1839 coined the term 'protoplasm' for the fluid substance of the cell.

Amoeba, often called amoeboid, is a type of cell or organism which has the ability to alter its shape, primarily by extending and retracting pseudopods.

Cytology is the branch of biology concerned with the structure and function of plant and animal cells.

The DNA double helix in the cell nucleus is packaged by special proteins termed histones. The formed protein/DNA complex is called chromatin.

Chlamydomonas has a cup-shaped chloroplast, with a single large pyrenoid where starch is formed from photosynthetic products.

Because they don't have flowers with nectar and pollen, pine trees don't attract bees, butterflies and other pollinators; all they need for pollination is wind.

Yellow fever is caused by a virus. Yellow fever is a viral infection transmitted by a bite from infected mosquitoes most commonly found in parts of South America and Africa. When transmitted to humans, the yellow fever virus can damage the liver and other internal organs and be potentially fatal.

Hepatitis targets liver. It leads to inflammation of the liver tissue.

Statement (i) is incorrect because ammonium nitrate and not aluminium nitrate is used as an explosive.
Statement (ii) is incorrect because aluminium is a reducing agent and not an oxidising agent and can be used to reduce many organic compounds.

Apple fruit is a pseudocarp with edible fleshy thalamus.

Protein is a macromolecule made up of monomeric units called amino acids.

Gravitation is movement, or a tendency to move, towards the center of gravity, as in the falling of bodies towards the Earth.

A cell is capable of independent existence and can carry out all the functions which are necessary for a living being. A cell carries out nutrition, respiration, excretion, transportation and reproduction.