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What is difference between key and index in php arrays?
A key is the name of a variable in an array ($array["key"]) and the index is the position it's at ($array = ["key" => 0], the index would be 0). Keys and indices are the same if the array is not associative though ($array = [true], the key holding the value true is named 0 and is at index 0).
What is the index notation of 294?
The index notation of 294 is 2 x 3^5, where 2 is the base and 5 is the exponent. This means that 294 can be expressed as the product of 2 and 3 raised to the power of 5. In index notation, the number is broken down into its prime factors and expressed as a product of primes with corresponding exponents.
What is 3 over b in index form?
raroo!
What is 4x4x4x5x5 in index?
4^3x5^2
What is 648 expressed as a product of its prime factors in index form?
648 expressed as a product of its prime factors in index form is 2^3 times 3^4
What factors effect the refractive index of a liquid?
The refractive index of a liquid is influenced by its chemical composition, temperature, and pressure. Additionally, the wavelength of light passing through the liquid can also affect its refractive index.
How calcualate the refractive index of petrol?
The refractive index is determined experimentally.
Does light travel faster through liquid or solid?
Light travels faster through liquid than through solid. The speed of light in a medium is determined by the refractive index of the material, which is lower in liquid compared to solid materials.
What factors affect refractive index of a liquid?
The refractive index of a liquid is affected by factors such as temperature, pressure, wavelength of light, and the chemical composition of the liquid. Changes in these factors can lead to variations in the refractive index of the liquid.
How we find out the refractive index of a liquid using newton's rings?
The refractive index of a liquid can be determined using Newton's rings by observing the pattern of concentric bright and dark fringes produced when light reflects off the liquid-air interface. By measuring the diameter of the rings and applying the formula relating ring radius to the refractive index of the liquid and the wavelength of light, the refractive index can be calculated. The relationship is given by: n = (R^2 - r^2) / (2t*r), where n is the refractive index, R is the radius of curvature of the lens, r is the radius of a bright ring, and t is the thickness of the liquid film.
How can one accurately measure the refractive index of a substance?
To accurately measure the refractive index of a substance, one can use a refractometer. This device measures how light bends as it passes through the substance, providing a numerical value for the refractive index. By comparing this value to known standards, the refractive index of the substance can be determined with precision.
How and why does temperature affect the refractive index of a liquid?
Yes, the refractive index of a liquid often is different at different temperatures (usually negative; e.g. It goes down as temperature goes up), although typically the effect is very nominal. However, that is not to say that there is a constant relationship between Ref index & temperature. Refractive index is proportional to the square roots of electrical permittivity and magnetic permeability. These factors may change with temperature, but not linearly, and therefore RI does not have a simple relationship with temperature.
Determine the refractive index of a transparent liquid by an interferance methode?
determine the refractive index of a transparent liqiud
Which liquid give the highest refractive index reading?
Diamond, when measured in liquid form. Liquid diamond has a refractive index of approximately 2.417, which is higher than any other liquid.
Is it possible to find the refractive index of the liquid without using a spherometer?
Yes, it is possible to find the refractive index of a liquid without using a spherometer. You can use a refractometer, which is a device specifically designed to measure the refractive index of liquids. Simply place a small amount of the liquid on the refractometer's prism and measure the refractive index reading that is displayed.
How can you determine the curvature and Refractive Index of spectacle glass?
The curvature of spectacle glass can be determined using a lensometer, which measures the curvature of the lens surface. The refractive index of spectacle glass can be determined by analyzing the way light passes through the lens and using equations that relate angles of light refraction to the refractive index of the material.
Boy's method to find the refractive index of a liquid?
Boy can find the refractive index of a liquid using a refractometer or by measuring the angle of refraction using a laser pointer. By measuring the critical angle of total internal reflection, he can calculate the refractive index of the liquid. Alternatively, he can use Snell's Law in conjunction with the angles of incidence and refraction to determine the refractive index.
