1. Abacus belongs to the first generation of the computer
2. ENIAC was used in the American military

Data processing involves________ steps

_________ belongs to the generation IV of the computer

____________ is an electronic device which stores data and information

Force involved in uniform circular motion is given by _____________.

In a 100 m race, the winner takes 10 s to reach the finishing point. The average speed of the winner is ___________ ms^-1.

An internal factor responsible for spoilage of food is ___________.

Cephalization is related to

During ecdysis which of the following is shed off

Tube like alimentary canal is found in

Excretory organ of tape worm is

Poikilothermic organisms are

Hermaphrodite organisms are

Choose the correct terms related for Hemichordate

The animal without skull is

Food and Adulteration Act was enforced by Government of India in the year __________.

The sprouting of onion and potatoes can be delayed by the process of _______________

When a body starts from rest, the acceleration of the body after 2 second in _____________ of its displacement.

The area under velocity time graph represents

The physician who discovered that scurvy can be cured by ingestion of citrus fruits is  ______________

The nutrient required in trace amounts to accomplish various body functions is ____________.

Transpiration takes place through _____________.

A plant is kept in a dark room for about 24 hours before conducting any experiment on photosynthesis in order to _______.

Chlorophyll in a leaf is required for __________.

During photosynthesis plants exhale _______. 

Dandelion flowers open the petals in bright light during the day time but close the petals in dark at night. This response of Dandelion flowers is called ___________.

The non-directional movement of a plant part in response to temperature is called ________.

The plant part which exhibits negative geotropism is __________.

The root of the plant is __________.
i) positively phototropic but negatively geotropic
ii) positively geotropic but negatively phototropic
iii) negatively phototropic but positively hydrotropic
iv)negatively hydrotropic but positively phototropic

A growing seedling is kept in the dark room. A burning candle is placed near it for a few days. The tip part of the seedling bends towards the burning candle. This is an example of ____________.

The bending of root of a plant in response to water is called _________ 

The bilaterally symmetrical larvae which transform into radially symmetrical adult is

Which is not a feature of chordates

Identify the animal having four chambered heart

Which one of the following pairs is not a poikilothermic animal?

Dysentery is caused by

Mesoglea is present in

Find the group having only marine members

Which is not an insect?

Which of the following statements about total internal reflection is true?

A real and enlarged image can be obtained by using a

The speed of light is maximum in

When a beam of white light passes through a prism it gets

The focal length of a concave mirror is 5cm. Its radius of curvature is

The correct electronic configuration of potassium is

The number of protons, neutrons and electrons present respectively in \(_{ 35 }^{ 80 }{ Br }\)

The term nucleons refer to

Change in the number of neutrons in an atom changes it to

Among the following the odd pair is

When the reflecting surface is curved outwards the mirror formed will be

_________ is used as reflectors in torchlight.

A ray of light passes from one medium to another medium. Refraction takes place when angle of incidence is

The field of view is maximum for ________ 

For a simple distillation process we need to have

Filtration method is effective in separating _______ mixture

______ is essential to perform separation by solvent extraction method.

The separation of denser particles from lighter particles done by rotation at high speed is called ________

Difference in ________________is the principle used in fractional distillation

The centrifugal force is

The force responsible for drying of clothes in a washing machine is

Which one of the following is most likely not a case of uniform circular motion?

Unit of acceleration is

A car is being driven at a speed of 20 ms^-1 when brakes are applied to bring it to rest in 5 s. The decelaration produced in this case will be

The area under velocity – time graph represents the

In a 100m race, the winner takes 10s to reach the finishing point. The average speed of the winner is

A body moving with an initial velocity 5ms^-1 and accelerates at 2ms^-2. Its velocity after 10s is

Which of the following graph represents uniform motion of a moving particle?

Slope of the velocity - time graph gives

Transpiration is best defined as _________ 

The chemical reaction occurs during photosynthesis is ________. 

The tropic movement that helps the climbing vines to find a suitable support is ________. 

A big tree falls in a forest but its roots are still in contact with the soil. The branches of this fallen tree straight up. This happens in response to __________

__________ has the same properties throughout the sample

The constituents that form a mixture are also called

When we mix a drop of ink in water we get a__________

Among the following______is a mixture

The physical state of water at 373 K is

Which among the following is not a device to measure mass?

Distance between Chennai and Kanyakumari can be found in

1 metric ton is equal to

Rulers, measuring tapes and metre scales are used to measure

Choose the correct one

The reason for brilliance of diamonds is mainly due to total internal reflection of light.

When an object is at the centre of curvature of concave mirror the image formed will be virtual and erect.

The convex mirror always produces a virtual, diminished and erect image of the object.

If the object is at infinity in front of a convex mirror the image is formed at infinity.

The angle of deviation depends on the refractive index of the glass

If the velocity – time graph of a particle is a straight line inclined to X-axis then its displacement – time graph will be a straight line?

The velocity – time graph of a particle falling freely under gravity would be a straight line parallel to the x axis

Distance covered by a particle never becomes zero but displacement becomes zero

Acceleration can get negative value also.

The motion of a city bus in a heavy traffic road is an example for uniform motion