General Science Archives - Page 7 of 19

What is the audible frequency range for the human ear?

What is the audible frequency range for the human ear? मानव कान के लिए श्रव्य (सुनाई देने वाली) आवृत्ति सीमा क्या है?

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Which of the following waves are audible to humans?

Which of the following waves are audible to humans? इनमे से कौन सी तरंगे मनुष्य के लिए श्रव्य होती हैं?

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What happens to the perceived frequency when both the source and the listener move with the same speed in the same direction?

What happens to the perceived frequency when both the source and the listener move with the same speed in the same direction? जब स्त्रोत और श्रोता दोनों एक ही दिशा में समान गति से चलते हैं। तो अनुभव की गई आवृत्ति पर क्या प्रभाव पड़ता है?

What happens to the perceived frequency when both the source and the listener move with the same speed in the same direction? Read More »

Fire caused by petrol cannot be extinguished with water because:

Fire caused by petrol cannot be extinguished with water because: पैट्रोल में लगी आग को पानी से नहीं बुझाया जा सकता हैं-

Fire caused by petrol cannot be extinguished with water because: Read More »

Impulse is defined as _________.

Impulse is defined as _________. आवेग को _________ के रूप में परिभाषित किया जाता है।

Impulse is defined as _________. Read More »

What is the SI unit of time?

What is the SI unit of time? समय की SI इकाई क्या है?

What is the SI unit of time? Read More »

Harold C Urey was awarded the Nobel Prize in Chemistry, in 1934:

Harold C Urey was awarded the Nobel Prize in Chemistry, in 1934: 1934 में, हेरोल्ड सी. उरे को रसायन विज्ञान में नोबेल पुरस्कार किस कारण से सम्मानित किया गया था?

Harold C Urey was awarded the Nobel Prize in Chemistry, in 1934: Read More »

A concave lens is used in:

A concave lens is used in: अवतल लेंस का उपयोग किसमें किया जाता है?

A concave lens is used in: Read More »

Although a colloid appears homogeneous, it is actually a __________.

Although a colloid appears homogeneous, it is actually a __________. यद्यपि कोलॉइड समांगी (एक जैसा) दिखाई देता है, वास्तव में यह एक __________ होता है।

Although a colloid appears homogeneous, it is actually a __________. Read More »

Select the correct option regarding the following two statements labelled Assertion (A) and Reason (R).

Select the correct option regarding the following two statements labelled Assertion (A) and Reason (R). अभिकथन (A) और कारण (R) से चिह्नित निम्नलिखित दो कथनों के संबंध में सही विकल्प का चयन कीजिए। Assertion (अभिकथन) (A): Zinc can displace copper from copper sulphate solution./ जिंक, कॉपर सल्फेट (CuSO₄) विलयन से कॉपर को विस्थापित कर सकता

Select the correct option regarding the following two statements labelled Assertion (A) and Reason (R). Read More »

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