Physics>Heat and Thermodynamics>Thermal Properties of Matter>Newton's Law of Cooling

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What was the primary reason for establishing the British colony in Australia?

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Important Questions on Thermal Properties of Matter

EASY

Physics>Heat and Thermodynamics>Thermal Properties of Matter>Newton's Law of Cooling

A copper rod of

88 c m

and an aluminum rod of unknown length have their increase in length independent of increase in temperature. The length of aluminum rod is

(α_{C u} = 1.7 \times 10^{- 5} K^{- 1} a n d α_{Al} = 2.2 \times 10^{- 5} K^{- 1})

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Physics>Heat and Thermodynamics>Thermal Properties of Matter>Newton's Law of Cooling

A rod, of length

L

at room temperature and uniform area of cross section

A,

is made of a metal having coefficient of linear expansion

α / ° C

It is observed that an external compressive force

F

is applied on each of its ends, prevents any change in the length of the rod when its temperature rises by

∆ T K

Young's modulus,

Y

for this metal is:

EASY

Physics>Heat and Thermodynamics>Thermal Properties of Matter>Newton's Law of Cooling

A particle of mass

m

is moving in a circular path of constant radius

r

such that its centripetal acceleration

a_{c}

is varying with time

t

as

a_{c} = k^{2} r t^{2}

, where

k

is a constant. The power delivered to the particle by the force acting on it is -

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Physics>Heat and Thermodynamics>Thermal Properties of Matter>Newton's Law of Cooling

An ideal gas is expanding such that

P T =

constant. The coefficient of volume expansion of the gas is

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Physics>Heat and Thermodynamics>Thermal Properties of Matter>Newton's Law of Cooling

Which of the following is a metalloid?

MEDIUM

Physics>Heat and Thermodynamics>Thermal Properties of Matter>Newton's Law of Cooling

Classify the given elements as metals, non-Metals and metalloids.

Na

,

O

,

As

,

Cl

,

W

and

Te

EASY

Physics>Heat and Thermodynamics>Thermal Properties of Matter>Newton's Law of Cooling

What are elements?

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Physics>Heat and Thermodynamics>Thermal Properties of Matter>Newton's Law of Cooling

How many elements are known till the end of

2020

.

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Physics>Heat and Thermodynamics>Thermal Properties of Matter>Newton's Law of Cooling

What is meant by classification of elements?

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Physics>Heat and Thermodynamics>Thermal Properties of Matter>Newton's Law of Cooling

What is the need for the classification of elements?

MEDIUM

Physics>Heat and Thermodynamics>Thermal Properties of Matter>Newton's Law of Cooling

What is the importance of periodic table?

MEDIUM

Physics>Heat and Thermodynamics>Thermal Properties of Matter>Newton's Law of Cooling

Why do we need of classify elements?

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Physics>Heat and Thermodynamics>Thermal Properties of Matter>Newton's Law of Cooling

The elements are broadly classified as

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Physics>Heat and Thermodynamics>Thermal Properties of Matter>Newton's Law of Cooling

What do you mean by classification of elements?

HARD

Physics>Heat and Thermodynamics>Thermal Properties of Matter>Newton's Law of Cooling

What is the need for classification of elements?

EASY

Physics>Heat and Thermodynamics>Thermal Properties of Matter>Newton's Law of Cooling

Why is it necessary to classify the elements?

MEDIUM

Physics>Heat and Thermodynamics>Thermal Properties of Matter>Newton's Law of Cooling

How many elements are present in the periodic table?

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Physics>Heat and Thermodynamics>Thermal Properties of Matter>Newton's Law of Cooling

What is the need of classification of elements?

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Physics>Heat and Thermodynamics>Thermal Properties of Matter>Newton's Law of Cooling

What are the advantages of classifying elements in the periodic table?

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Physics>Heat and Thermodynamics>Thermal Properties of Matter>Newton's Law of Cooling

What is the need for classification of elements?