Question
What is the frequency of Ultrasonic
Waves?Solution
The range of human hearing is about 20Hz to 20,000 Hz. Ultrasound waves have frequencies more than 20,000 Hz(which is 20 kHz). As this is above the normal hearing range for humans, we cannot hear ultrasound.
The national song ‘Vande Mataram’ was composed by Bankim Chandra Chatterjee i n which language?
Which of the following seas has highest salinity in the world?
The missing term of the series isÂ
A2, C5, E8, G11, ____________
Which amongst the following statements is/are not correct ?
1.     Isthmus is a narrow strip of land joining two landmasses.
2. �...
If * is an operation such that a * b = 3a – 4b. find the value of 3*4
Penicillium is a _____________.
The six freedoms in Article 19 can be curtailed by:
New education policy. 2020 is goal to achieve 100% gross enrolment Ratio (GER) in school Education by the year ________.
If the square root of the product of two numbers equals their average, then
Relevant for Exams:
