The ratio of mass of proton to that of electron is nearly

An electron has a mass that is approximately __________ that of the proton.

A

1/1836

B

1

C

1836

D

none of the mentioned

What is the size of Electron as comapared to Proton and Neutron?

A

1/355

B

1/1236

C

1/1836

D

1/1923

What is the difference between the kinds of charges for an electron and a proton?

A

An electron has a positive charge and a proton has no charge

B

An electron has a positive charge and a proton has a negative charge

C

An electron has a negative charge and a proton has a positive charge

D

An electron has a negative charge and a proton has no charge

E

None of the above

If electron flows in right direction, proton seems to flow-.

A

Leftward

B

Rightward

C

Upward

D

Downward

Who indirectly determined the mass of the electron by measuring the charge of the electron?

A

Thomson

B

Millikan

C

Rutherford

D

Einstein

The ratio of the actual mass of water vapour in a unit mass of dry air to the mass of water vapour in the same mass of dry air when it is saturated at the same temperature and pressure, is called

A

Humidity ratio

B

Relative humidity

C

Absolute humidity

D

Degree of saturation

Taciturn is most nearly opposite in meaning to -. (Choose the word which is most nearly opposite in meaning to word in capital letters)

A

Spoken

B

Talkative

C

Leisurely

D

Placatory

Castigate is most nearly opposite in meaning to- (Choose the word which is most nearly opposite in meaning to word in capital letters)

A

Flatten

B

Change

C

Extol

D

None of them

Salute is most nearly opposite in meaning to- (Choose the word which is most nearly opposite in meaning to word in capital letters)

A

Espy

B

Defame

C

Acquire

D

Cogitate

Indictment is most nearly opposite in meaning to- (Choose the word which is most nearly opposite in meaning to word in capital letters)

A

Eulogy

B

Tirade

C

Crime

D

None of them

The ratio of mass of proton to that of electron is nearly

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