General Science Archives - Page 17 of 19

Which cell organelles in a leaf contain

Which cell organelles in a leaf contain chlorophyll necessary for photosynthesis? पत्ती में कौन-सा कोशिकांग प्रकाश संश्लेषण के लिए आवश्यक क्लोरोफिल को धारण करता है?

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A patient with reduced bile production will face difficulty in the absorption of ______.

A patient with reduced bile production will face difficulty in the absorption of ______. पित्त उत्पादन में कमी वाले रोगी को ______ के अवशोषण में कमी का सामना करना पड़ता है।

A patient with reduced bile production will face difficulty in the absorption of ______. Read More »

Which of the following is a unique characteristic

Which of the following is a unique characteristic of sponges (Phylum porifera)? निम्नलिखित में से कौन स्पंज (फाइलम पोरिफेरा) की एक अनूठी विशेषता है?

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Which of the following factors primarily

Which of the following factors primarily determines the size of an atom? निम्नलिखित में से कौन – सा कारक, मुख्य रूप से परमाणु के आमाप को निर्धारित करता हैं?

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A hydroelectric power generator works on which of the following scientific principles?

A hydroelectric power generator works on which of the following scientific principles? जलविद्युत शक्ति जनित्र, निम्नलिखित में से वैज्ञानिक सिद्धांत पर कार्य करता हैं?

A hydroelectric power generator works on which of the following scientific principles? Read More »

An object is placed at 80 cm on the left of a convex

An object is placed at 80 cm on the left of a convex lens of focal length 40 cm. Where should a screen be placed to right of the lens so that the image formed is real, inverted and same sized? एक वस्तु को 40 cm फोकस दुरी वाले एक उत्तल लेंस के बाई ओर

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The persistence of sound even after the source has stopped emitting it, due to ________ from many surfaces, is called reverberation.

The persistence of sound even after the source has stopped emitting it, due to ________ from many surfaces, is called reverberation. कई पृष्टों से ________ के कारण स्त्रोत द्वारा ध्वनि उत्सर्जित बंद कर देने के बाद भी ध्वनि का बने रहना, प्रतिध्वनन कहलाता हैं।

The persistence of sound even after the source has stopped emitting it, due to ________ from many surfaces, is called reverberation. Read More »

When iron filings are mixed with sulfur powder

When iron filings are mixed with sulfur powder and the mixture is heated, a black substance called iron sulfide is formed. Which statement best describes the changes involved? जब लोहे के बुरादे को सल्फर पाउडर के साथ मिलाया जाता है और मिश्रण को गर्म किया जाता है, तो आयरन सल्फाइड नामक एक काला पदार्थ बनता

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During the water cycle, which part of the plant is involved in the process of transpiration?

During the water cycle, which part of the plant is involved in the process of transpiration? जल चक्र के दौरान, पादपों का कौन सा भाग वाष्पोत्सर्जन की प्रक्रिया में भाग लेता हैं?

During the water cycle, which part of the plant is involved in the process of transpiration? Read More »

The kinetic energy of an object of mass

The kinetic energy of an object of mass m moving with a velocity v is 25 J. What will be its kinetic energy when its velocity is increased three times (3v)? वेग v से गतिमान m द्रव्यमान की किसी वस्तु की गतिज ऊर्जा 25 J है। जब इसका वेग बढ़ाकर तीन गुना (3v) कर दिया

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