What is called a critical angle? Answer : The **critical angle** refers to a specific angle of incidence in the context of light (or other waves) traveling from one medium into another. When light passes from a denser medium ... medium but instead reflects back. It plays a crucial role in optical technologies and natural optical phenomena....
Which angle is called critical angle? Answer : The critical angle is the angle of incidence at which light traveling from a denser medium to a less dense medium is refracted along the boundary between the two media. At this angle, the angle ... the critical angle, total internal reflection occurs, and no light passes into the less dense medium....
How to find degrees of freedom? Answer : Degrees of freedom (often abbreviated as df) is a concept used in statistics, particularly in hypothesis testing, regression analysis, and analysis of variance (ANOVA). It refers to the ... have available for your calculations, considering any constraints such as sample size or estimated parameters....
Why does current lead voltage by 90 degrees in capacitor? Answer : In a capacitor, the voltage lags the current by 90 degrees, not the other way around. This happens because a capacitor resists changes in voltage. When a capacitor is charged, the current leads ... itself by 90 degrees, the current waveform leads the voltage waveform by 90 degrees in a capacitor....
Is 70 good in 10th? Answer : A score of 70 in 10th grade is generally considered quite good. It often indicates a solid understanding of the material, but the significance can depend on the grading system and expectations at your ... and can serve as a good foundation for improvement. What subject or area are you talking about?...
