Basic Science Test 5

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Basic Science Test 5

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Weekly Quiz Competition

Question 1
1 / -0

India is a party to the Ramsar Convention and has declared many areas as Ramsar Sites. Which of the following statements best describes as to how we should maintain these sites in the context of this convention?

A
Keep all the sites completely inaccessible to man so that they will not be exploited.

B
Conserve all the sites through ecosystem approach and permit tourism and recreation only.

C
Conserve all the sites through ecosystem approach for a period without any exploitation with specific criteria and specific period for each site, and then allow sustainable use of them by future generations.

D
Conserve all the sites through ecosystem approach and allow their simultaneous sustainable use.
Question 2
1 / -0

Which relation is wrong?

A
$$1cal=4.18J$$

B
$$1\mathring { A } ={ 10 }^{ -10 }m$$

C
$$1\mu ={ 10 }^{ -6 }m\quad $$

D
$$1\quad mile=1.12km$$

Solution
Question 3
1 / -0

Which of the following pairs is wrong?

A
Pressure - Barometer

B
Relative density - Pyrometer

C
Temperature - Thermometer

D
Earthquake - Seismograph

Solution

Pyrometer is an instrument used for measurement of temperature.
So, option $$B$$ is incorrect.
Question 4
1 / -0

Match the columns:
List I (Quantity) List II (Unit)
(A) Luminous intensity (1) Kelvin
(B) Amount of substance (2) Candela
(C) Time (3) Second
(D) Temperature (4) Mole

A
A-2; B-4; C-3; D-1

B
A-4; B-2; C-3; D-1

C
A-2; B-4; C-1; D-3

D
A-3; B-1; C-4; D-2

Solution

Question 5

1 / -0

Match the columns:

Quantity	Dimensions
(A) Velocity	(1) $$\left[ ML{ T }^{ -2 } \right] $$
(B) Force	(2) $$\left[ L{ T }^{ -1 } \right] $$
(C) Work	(3) $$\left[ M{ L }^{ 2 }{ T }^{ -2 } \right] $$
(D) Momentum	(4) $$\left[ ML{ T }^{ -1 } \right] $$

A-2; B-1; C-3; D-4

A-3; B-4; C-1; D-2

A-2; B-1; C-4; D-3

A-4; B-3; C-2; D-1

Solution

Question 6
1 / -0

Which of the following physical quantities is dimensionless?

A
Strain

B
Angle

C
Specific gravity

D
All of these

Solution
Question 7
1 / -0

Consider the physical quantities
(1) Electric current (2) Work
(3) Temperature (4) Density
Which of the above are scalar quantities?

A
1, 2 and 3

B
1. 4 and 3

C
3, 4 and 2

D
1, 2, 3 and 4

Solution
Question 8
1 / -0

Masses of stars and galaxies are usually expressed in terms of _______.

A
neutron mass

B
earth's mass

C
solar mass

D
lunar mass

Solution
Question 9
1 / -0

One light year is approximately equal to ________.

A
$${10}^{11}km$$

B
$${10}^{15}m$$

C
$${10}^{16}m$$

D
$${10}^{16}km$$

Solution
Question 10
1 / -0

If the density of water is $$1g\,{cm}^{-3}$$ in CGS system, its value in MKS system is __________.

A
$$1$$ $$kg$$ $${m}^{-3}$$

B
$${10}^{3}$$ $$kg$$ $${m}^{-3}$$

C
$${10}^{-3}$$ $$kg$$ $${m}^{-3}$$

D
$${10}^{-6}$$ $$kg$$ $${m}^{-3}$$

Solution