Ordinates are the vertical coordinates of points in a Cartesian plane. They represent the y-values in an ordered pair (x, y) and measure the distance from the x-axis. Positive ordinates lie above the x-axis and negative ordinates lie below. They ...
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The correct answer is (c) solid CO₂. Dry ice is the solid form of carbon dioxide (CO₂). It sublimates directly into gas at room temperature without passing through the liquid phase, making it useful for cooling and creating fog effects.
An anti-derivative is a function whose derivative gives the original function. It is also called an indefinite integral. Finding the anti-derivative is the reverse process of differentiation. It includes a constant of integration since differentiation removes constants. Anti-derivatives are essential ...
Integrals represent the accumulation of quantities and the area under curves. They are classified into definite and indefinite integrals. The definite integral computes a specific area, while the indefinite integral finds the antiderivative. Integration is the reverse process of differentiation ...
The Kelvin temperature is found by adding 273 to the Celsius temperature. Thus, 25°C = 298 K, 38°C = 311 K, and 66°C = 339 K, making option (a) the correct choice. Class 9th Science NCERT MCQ Questions NCERT Books ...