MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Nature of Electromagnetic Radiation

Assertion :Co...

Question

Assertion: Communication in UHF/VHF regions can be established by space wave or tropospheric wave.
Reason: Communication in UHF/VHF regions is limited to line of sight distance.

A

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

C

Assertion is correct but Reason is incorrect

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

Both Assertion and Reason are incorrect

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

UHF stands for ultra high frequency and VHF is the abbreviation of very high-frequency signals.
These are used in radio communication.
Space wave propagation occurs in UHF and VHF band.
These waves travel through the atmosphere and are not reflected by the ionosphere.
Thus, we can say that they are limited to line of sight.
Thus,
Option B) both Assertion and Reason statements are correct but the Reason statement is not the correct explanation for Assertion is the correct option.

Suggest Corrections

thumbs-up

0

Similar questions

Q. Assertion: The compressibility factor for

H_{2}

H e

(1 + \frac{P b}{R T})

Reason: The compressibility factor for

H_{2}

H e

can be derived from Van der Waal's equation.

Assertion – The non-fusible impurities present in iron ore are removed by $C a C O_{3}$ .

Reason: $C a C O_{3}$ which decomposes into $C a O$ and $C O_{2}$ . The $C a O$ formed reacts with $S i O_{2}$ to remove silica

Q. Assertion: The impurities such as

{SiO}_{2}

present in iron ore is removed by

{CaCO}_{3}

CaO

formed by decomposition of

{CaCO}_{3}

{SiO}_{2}

Assertion (A) Order of the reaction can be zero or fractional.

Reason (R) We cannot determine order from balanced chemical equation.

(a) Both assertion and reason are correct and the reason is correct explanation of assertion
(b) Both assertion and reason are correct, but reason does not explain assertion.
(c) Assertion is correct, but reason is incorrect
(d) Both assertion and reason are incorrect
(e) Assertion is incorrect but reason is correct.

ASSERTION: n-Pentane and n-Hexane belong to a homologous series.

REASON: n-Pentane and n-Hexane belong to the same class of hydrocarbons and they differ by a - $C H_{2}$ - group.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Wave Nature of Light

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Nature of Electromagnetic Radiation

Standard XII Chemistry

Join BYJU'S Learning Program

CrossIcon