According to the Newton's III law of motion, action & reaction

(a)

always act on the same body

(b)

have same magnitude & direction

(c)

always act in opposite directions

(d)

act on either body at normal to each other

If V_B, V_G, V_R be the velocity of blue, green and red light respectively in a glass prism, then which of the following statement gives the correct relation?

(a)

V_B = V_G = V_R

(b)

V_B > V_G >V_R

(c)

V_B < V_G < V_R

(d)

V_B < V_G > V_R

Thermal expansion at particular temperature is less in

(a)

solid

(b)

liquid

(c)

gas

(d)

all above

The first nuclear reactor was built at  _________.

(a)

New York

(b)

San Francisco

(c)

New Jersey

(d)

Chicago

The volume occupied by 1 mole of a diatomic gas at S.T.P is

(a)

11.2 liters

(b)

5.6 liters

(c)

22.4 liters

(d)

44.8 liters

Modern periodic table contains ______ groups.

(a)

9

(b)

32

(c)

18

(d)

64

Deliquescence is due to __________

(a)

Strong affinity to water

(b)

Less affinity to water

(c)

Strong hatred to water

(d)

Inertness to water

Exarch and tetrarch xylem are a feature of ___________.

(a)

dicot stem

(b)

dicot leaf

(c)

monocot root

(d)

dicot root

In leech locomotion is performed by

(a)

Anterior sucker

(b)

Parapodia

(c)

Setae

(d)

Contraction and relaxation of muscles

Each neuron can transmit ______ nerve impulses per second.

(a)

10

(b)

1000

(c)

10,000

(d)

1,00,000

Biogenetic law states that ___________

(a)

Ontogeny and phylogeny go together

(b)

Ontogeny recapitulates phylogeny

(c)

Phylogeny recapitulates ontogeny

(d)

There is no relationship between phylogeny and ontogeny

Where you will create category of blocks?

(a)

Block palette

(b)

Block menu

(c)

Script area

(d)

sprite

If a 5 N and a 15 N forces are acting opposite to one another. Find the resultant force and the direction of action of the resultant force.

Write electrical use of the components in electrical circuit.

What will be the frequency sound having 0.20 m as its wavelength, when it travels with a speed of 331 m s^–1?

Give any two examples for heterodiatomic molecules.

Give an example each
i) gas in liquid
ii) solid in liquid
iii) solid in solid
iv) gas in gas

List the difference between Dicot and Monocot stem.

How does leech suck blood from the host?

Is hair preserved in fossils?

Mention the diseases caused by tobacco smoke.

What is Scratch?

Explain the Sign Conventions of lenses.

Calculate the coefficient of cubical expansion of a zinc bar. Whose volume is increased 0.25 m³ from 0.3 m³ due to the change in its temperature of 50 K.

Distinguish between Nuclear fission and nuclear fusion.

Arrive at, systematically, the IUPAC name of the compound: CH₃–CH₂–CH₂–OH

What is the importance of valves in the heart?

How are chromosomes classified based on the position of centromere?

Why is Archaeopteryx considered to be a connecting link?

Differentiate between outbreeding and inbreeding.

What is diabetes? Explain the types.

Program for print the word “Hello” with sound

Two blocks of masses 8 kg and 2 kg respectively lie on a smooth horizontal surface in contact with one other. They are pushed by a horizontally applied force of 15 N. Calculate the force exerted on the 2 kg mass.

Name the acid that renders aluminium passive. Why?

'A' is a blue coloured crystalline salt. On heating it loses blue colour and to give 'B'. When water is added, 'B' gives back to 'A'. Identify A and B, write the equation.

Can a nickel spatula be used to stir copper sulphate solution? Justify your answer.

Sanjay is sitting in the exam hall. Before the start of the exam, he sweats a lot, with increased rate of heart beat. Why does this condition occur?

Biofortification may help in removing hidden hunger. How?