If frequency of modulated wave is less than frequency of carrier wave, then input signal is?
اگر ماڈیولڈ لہر کی فریکوئنسی کیریئر ویو کی فریکوئنسی سے کم ہے، تو ان پٹ سگنل کیا ہے؟
Answer: Negative
Explanation
- When the frequency of the modulated wave is less than the frequency of the carrier wave, it indicates that the input signal is negative.
- This is a characteristic of amplitude modulation (AM) where the input signal is negative, resulting in a decrease in the amplitude of the carrier wave.
This question appeared in
Past Papers (2 times)
Secondary School Teacher SST Past Papers, Syllabus, Jobs (1 times)
SPSC Past Papers (1 times)
This question appeared in
Subjects (1 times)
EVERYDAY SCIENCE (1 times)
Related MCQs
- A traveling wave on a rope has a frequency of 2.5 Hz. If the speed of the wave is 1.5 m/s, what are its period and wavelenght
- If the first frequency is 1 Hz and the wave is split into 4 parts, what is the value of the second frequency?
- A wave has a frequency of 500 Hz and a wavelength of 2 cm. What will be its velocity?
- The speed of sound waves is 8 m/sec and the wavelength is 2.5 m. The frequency of this wave will be _____?
- A tuning fork has a frequency of 300 Hz and produces a sound wave with a wavelength of 4 feet. What is the velocity of sound in air?
- What is the wavelength of a sound wave with a frequency of 440 Hz if the speed of sound in air is 340 m/s?
- A frequency distribution is given below: Classes: 10-20, 20-30, 30-40, 40-50, 50-60 Frequency: 12, 18, 10, 5, 2. The class which has minimum frequency is?
- A wave in which the particles of the medium vibrate back and forth in the same direction, parallel to the motion of the wave, is called _____?
- Which of the following is due to the change in wave speed when a wave strikes the boundary to another medium?
- A frequency distribution is given below: Class limit: 5-9, 10-14, 15-19, 20-24, 25-29 Frequency: 14, 28, 50, 38, 20. From the above frequency distribution the frequency of third class is _____?