Everyday Science — 06

If the radius of the Earth is made 1/4th, the duration of an year will become

Which phenomenon is responsible for Mirage?

The blackboard seems black because it

Who had showed that the electric and magnetic waves are equal in vacuum?

Which one of the following phenomena is associated with the fireflies giving cold light in night?

Why laser is used in the pipe alignment?

Which one is not produced by sound waves in the air?

The volume of the nucleus is proportional to

Which of the following device is fully duplex?

Which one of the following remains constant while throwing the ball upward?

A table cloth can be pulled from a table without dislodging the dishes. It is because of

A galvanometer is converted into ammeter when we connect

Which one of the following common devices works on the basis of the principle of
mutual induction?

Hair of a shaving brush cling together when the brush is removed from water due to

Which of the following is a ferromagnetic material?

The phenomenon of bursting of hydrogen balloon is based on

Which one of the following can convert the alternating current into the direct current?

A radar beam is sent onto a moving air-plane in opposite direction of its approach. In
which of these ways it will be affected?

Cavitations is a special application property exhibited only by

Which of the following wavelengths will suffer maximum deviation while passing through a prism?

A coin immersed in water pond appears to be raised when view from the top. What is this due to?

What enables us to write on the black board with chalk?

Which of the following is not an amorphous substance?

Which waves are used in sonography?

Post office box is a device for measuring resistant based on the principle of

Which of the following is not a sexually transmitted disease?

Bamboo is classified as

pH value of pure water is :

The compounds leading to the origin of life were

The mass of the body at the centre of earth is

Which of the following instruments are used for measuring the speed of aeroplane?

Vitamin K is necessary for formation of

The disease caused by the deficiency of protein in children is

The vitamin useful in alcoholism is

The most familiar form of radiant energy in sunlight that cause tanning and has the potential for causing melanoma in humans is called

Which one of the following air pollutant can affect blood stream leading to death?

Which of the following cannot be emitted by radioactive substances during their decay?

The common refrigerant used in domestic refrigerator is

Which of the following is the most suitable ecosystem?

Which of the following gases contribute to the Green House Effect?

Sound above what level is considered hazardous noise pollution?

Wireless communication is reflected bank to the earth’s surface by the

The mirror used by a dentist to examine the teeth of patients is

If the spinning speed of the earth is increased then the weight of body at equator

A colour-blind person cannot differentiate between

Cryogenic engines find application in

Human skin is

The snake bite firstly affects which part of the body?

When a red glass is heated in dark room it will seem

The situation of global warming in atmosphere is developed due to increase in which gas?

Who among the following gave the first experimental value of G?

How many chambers are there in heart?

What function does blood perform in body?

The founder of the modern theory of evolution was Charles Darwin. In which year, the first edition of his On The Origin of The Species was published?

Who invented Thermoscope in 1593, an early form of thermometer?

The mammal capable of flying is

The depth to which a floating body sinks in pure water is a measure of its

Which one of the following gases is ejected in volcanic eruptions?

Which one of the following is used in making bullet proof materials?

A layer of Earth made up of mixed metals and silicates is called

The souring of milk is caused by the action of

The atmosphere of Venus is made up almost completely of

Which one among the following lasers is used in cancer treatment?

The instrument used to measure radioactivity is called

A person suffering from which of the following cannot see with clarity the horizontal and
vertical lines simultaneously?

Which substance goes milky/ cloudy when you bubble carbon-dioxide into it?

Which one of the following phenomena shows particle nature of light?

A jet engine works on the principle of conversion of

Water is a good solvent. This is due to

The bond which is present between water molecules is

What will happen if the star having mass greater than five times of the Sun is dead?

Artherosclerosis is a major condition leading to

Shrinkage of protoplast due to exosmosis of water is

Bean shaped cells in plants are

Water potential of pure water is

Splitting of glucose relates to

Reptiles hibernate during

Sickle cell anemia was discovered by

Rich source of energy in seimen is

In human beings influenza is caused by

The life and activities of a cell is controlled by

The simplest amino acid is

Tobacco mosaic virus was crystallized by

Higher vascular plants are also called

Which bone is called beauty bone in women?

Outside the thallus of Marchantia there are special structures called

The foetus is protected from the mechanical damage by

The terms procariotique and eucariotique were proposed by

Non-enveloped naked viruses are known as

Group of tissues doing a particular job is

What are present in the underground parts of the plants and stored food?

The non-protein part of enzyme is called

Nucleic acids were discovered in 1868 by twenty-four-year-old Swiss physician

The detail study of internal organs at level of tissue with the help of microscope is called

Which enzyme digest carbohydrates?

On which of the following plants did Gregor Mendal perform his classical experiment?

Phloem, also called bast, tissues in

Pollination is best defined as

Which is the bone that is present in forelimb?

Which from the following have the greatest speed?