PHOTOGRAPHER MCQS FOR TEST PREPARATION
چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
- A particle of light energy
- A measure of light energy
- A stream of light energy
- None of these
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Explanation
A photon is a tiny particle that carries light energy.
It's the basic unit of light.
It's behavior is the foundation of quantum mechanics.
فوٹوگرافی کی اصطلاح کس نے بنائی؟
- Fox Talbot
- Sir John Herschel
- Nicephore Niepce
- None of these
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Explanation
The term "photography" was coined by Sir John Herschel in 1839.
The word comes from the Greek words "phos" (light) and "graphé" (drawing or writing).
It together mean "drawing with light".
فوٹو گرافی میں واقعہ روشنی کیا ہے؟
- Is reflected from the subject
- Backlights the subject
- Falls on the subject
- None of these
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Explanation
Incident light in photography refers to the light that falls directly on the subject or object being photographed.
It is the light that illuminates the subject.
It is often used to create the main lighting effect in an image.
دنیا کا پہلا آل الیکٹرک فوٹو گرافی اسٹوڈیو کس سال کھولا گیا؟
- 1887
- 1897
- 1917
- 1877
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Explanation
The world's first all-electric photographic studio was opened in 1887 by Eadweard Muybridge in San Francisco, California.
This studio used electric lights to illuminate the subjects.
دنیا کا پہلا فوٹو گرافی پورٹریٹ اسٹوڈیو کس سال کھولا گیا؟
- 1850
- 1840
- 1860
- 1870
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Explanation
The world's first photographic portrait studio was opened in New York City in March 1840, by Alexander Wolcott.
The first studio in Europe was opened by Richard Beard in a glasshouse on the roof of the Royal Polytechnic Institution in London on March 23, 1841.
کیمرہ دراصل ایک لاطینی لفظ ہے جس کا مطلب کیا ہے؟
- Picture box
- Light box
- Room
- None of the above
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Explanation
The Latin word "camera" means "room" or "chamber".
The first cameras were essentially small rooms or boxes with a hole in one end.
It hole allowed light to enter and project an image onto a surface inside.
تاپدیپت چراغ کی متوقع زندگی ____ کتنی ہے؟
- 100 hours
- 200 hours
- 500 hours
- 1000 hours
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Explanation
The average lifespan of a traditional incandescent light bulb is around 1000 hours.
Although this can vary depending on usage and other factors.
It's worth noting that other types of light bulbs.
Such as LEDs and CFLs, can have much longer lifespans.
تاپدیپت لیمپوں میں فلیمینٹس کے لیے کون سا مواد سب سے زیادہ استعمال ہوتا ہے؟
- Tungsten
- Tin
- Silver
- Asbestos
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Explanation
Tungsten in incandescent light bulbs:
- High melting point (3422°C/6192°F)
- Glows white-hot without melting
- Conductive
- Strong
- Ideal material for light bulb filaments
آنکھوں میں سرخ نظر آنے والی چیز کیا جذب کرتی ہے؟
- Blue radiation
- Violet radiation
- Green radiation
- Absorbs all the above radiation
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Explanation
When an object appears red, it means that it reflects the long wavelengths of light in the red part of the visible spectrum.
To appear red, the object must absorb the shorter wavelengths of light.
Including blue, violet, and green, and reflect only the red light.
کینڈل پاور کی طاقت کیا ہے؟
- The luminous flux emitted by the source per unit solid angle
- The part of the light energy radiated by the sun that is received by earth
- Measured in lux
- None of the above
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Explanation
Candle power is defined as the luminous flux emitted by the source per unit solid angle.
The historical candlepower is equal to 0.981 candelas
SI units: 1 candela
Symbol: cp
Unit of: Luminous intensity
Unit system: international standard (obsolete)
