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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.
Who become the first female President of Hungary?
Deoband Movement in Uttar Pradesh was started in which of the following year?
Which of the following Indian freedom fighters was not part of the 'Lal Bal Pal' trio?
In India, all loans that are below __________ are considered microloans.
The capital of the Vajji Mahajanapada was ____________.
Which dance form of Uttar Pradesh is among the major dance forms of India?
Consider the following statements.
1. The longest train of the country is Prayagraj Express.
2. Diesel Locomotives Works Factory was estab...
Krishna Janmashtami is specially celebrated at which place?
On what is the principle of Brahmo Samaj based?
Which historical figure's birthplace is located in Ayodhya, Uttar Pradesh?
