\(power \ of \ a \ lens \ (D) = \frac{1}{focal \ length \ (m)}\) A lens has a power of -3.33 dioptres. Calculate the focal length and state what type of lens it is.

Everything you need to know to photograph a meteor shower, from choosing the right time to camera settings, and some advanced ...

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This is what happened when Focal launched the Bathys back in 2022. Well, the company is back with a new and better pair. Focal just announced the upcoming Bathys MG. Focal has more than 45 years ...

9.Power of lens is -0.5 D. (a) What is the relation between the power of a lens and its focal length? Answer: The power P of a lens is given by: The negative sign indicates a concave lens.

Check here the Kerala SSLC Physics Question Paper 2025 and Answer Key with PDF format. Get the exam paper with answers for ...

Our car loan calculator estimates a monthly car payment and total loan cost based on vehicle price, interest rate and loan length. Try different calculator scenarios to determine the best auto ...

Apple’s Fusion Camera technology already allows users to capture “optical quality” shots at 2x focal length, as we’ve tested with the iPhone 16 Pro’s main wide camera. The software ...

another 200MP telephoto sensor with 100mm focal length, and a 50MP ultrawide camera. The Xiaomi 15 Ultra also has a massive 6000mAh battery. Also read: Samsung Galaxy A26, Galaxy A36, and Galaxy ...