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कक्षा 9

सभी विषयों के लिए नोट्स, प्रश्नोत्तर और गाइड।

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कक्षा 10

बोर्ड परीक्षा की तैयारी के लिए स्टडी मैटेरियल।

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कक्षा 11

विज्ञान, वाणिज्य और कला के लिए सामग्री।

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कक्षा 12

बोर्ड परीक्षा और करियर गाइड के लिए जरूरी जानकारी।

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An electron microscope gives higher magnification than an optical microscope, because

byAbhinay Singh -
0

An electron microscope gives higher magnification than an optical microscope, because : 

(1) it uses more powerful lenses 

(2) the velocity of electrons is smaller than that of visible 

light 

(3) the electrons have more energy than the light particles 

(4) the wavelength of electrons is smaller as compared to the wavelength of visible light 


Answer: (4) An electron microscope uses a beam of electrons to illuminate a specimen and produce a magnified image. An electron microscope (EM) has greater resolving power than a light-powered optical microscope because electrons have wavelengths about 100,000 times shorter than visible light photons. Magnification is the process of enlarging something only in appearance, not in physical size. This enlargement is quantified by a calculated number also called “magnification”. When this number is less than one it refers to a reduction in size, sometimes called “de-magnification”.

An electron microscope gives higher magnification than an optical microscope, because : (1) it uses more powerful lenses (2) the velocity of electrons is smaller than that of visible light (3) the electrons have more energy than the light particles (4) the wavelength of electrons is smaller as compared to the wavelength of visible light


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