SI unit of temperature is __________

(a)

celsius

(b)

fahrenheit

(c)

kelvin

(d)

ampere

Unit of pressure is

(a)

pascal

(b)

Nm^–2

(c)

poise

(d)

Both (a) & (b)

The distance from the pole to the focus is called

(a)

Pole length

(b)

focal length

(c)

principal axis

(d)

None of the above

Symbol of Mercury is

(a)

Ag

(b)

Hg

(c)

Au

(d)

Pb

_______ is used to measure electric current.

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Ammeter

The property of _____ of a liquid surface enables the water droplets to move upward in plants.

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surface tension

Water contains _______ and ______ element

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Hydrogen and Oxygen

_______ are the infectious protein particles.

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Prions

The largest cell is egg of an _________.

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Ostrich

If One coulomb of charge flowing in one minute, it is called ‘ampere’.

(a) True

(b) False

Liquid pressure decreases with the decrease of depth.

(a) True

(b) False

Yeast is used in the large scale production of alcohol.

(a) True

(b) False

Mosses are the well developed plant in bryophytes.

(a) True

(b) False

In gymnosperms ovules are developed from the flowers.

(a) True

(b) False

Lubricants

(1)

Wall

Irregular reflection

(2)

reduce friction

Iron

(3)

Oxygen

Ozone

(4)

CO₂ water and heat

Glucose

(5)

Sewing needle

What is the SI unit of Luminous Intensity?

Define one atmosphere.

If two plane mirrors are inclined to each other at an angle of 90°, find the number of images formed.

What is ductility?

Define catalysis

Who discovered penicillin?

Write any two characters of dicotyledons.

Define Metabolism?

Define - mole.

State Pascal’s law and mention its applications.

Define a Alchemy.

Write the differences between algae and fungi.

What is a Computer?

Explain the three types of pollution.

Differentiate between inhalation and exhalation.