class 12 physics – Page 106 – Discussion Forum

Forgot Password

Lost your password? Please enter your email address. You will receive a link and will create a new password via email.

You must login to ask question.

Search

Ask A Question

SANYAM

Asked: February 13, 2020In: Class 11

Sample papers

Please upload physics and biology sample papers and upload the answers of all the sample papers

Poll

Kriti Narang

Asked: November 7, 2019In: Class 12

Audio sine waves of 3 kHz frequency are used to amplitude modulate a carrier signal of 1.5 MHz. Which of the following statements are true?

Which one is correct.

Poll

Kriti Narang

Asked: November 7, 2019In: Class 12

A 100m long antenna is mounted on a 500m tall building. The complex can become a transmission tower for waves with λ.

Select the correct one.

Poll

Kriti Narang

Asked: November 7, 2019In: Class 12

Three waves A, B and C of frequencies 1600 kHz, 5 MHz and 60 MHz, respectively are to be transmitted from one place to another. Which of the following is the most appropriate mode of communication:

Select the correct answers.

Poll

Kriti Narang

Asked: November 7, 2019In: Class 12

A speech signal of 3 kHz is used to modulate a carrier signal of frequency 1 MHz, using amplitude modulation. The frequencies of the side bands will be

Select the correct one.

Load More Questions