Black hole से जुड़े रोचक facts | amazingxa0factsxa0aboutxa0blackxa0hole | space facts in hindi | #shorts

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Miniature black holes. Left over from the big-bang beginning of the uniberse, tiny black holes might still wander through the universe. If one with a mass of 5.0 xx 10^11 kg (and a radius of only 5.0 xx 10^(-16)m ) reached Earth, at what distance from your head would its gravitational pull on you match that of Earth's?

A hollow sphere has a small hole. When the sphere is taken to a depth of 0.5 m inside water the air bubbles started coming out from the hole. If the surface tension of water is the radius of the hole is

A garden pipe has an internal diameter of 4 cm. It is connected to a lawn sprinkler that consists of 24 holes at the other end. Each hole is of radius 0.06 cm. If the water in the pipe has a speed of 80 cm s^(-1) , find its speed through sprinkler holes.

A circular hole in an aluminium plates is 3.115 cm in diameter at 0.000^@C . What is its diameter when the temperature of the plate is raised to 180.0^@C ?

A garden hose having an internal diameter 2.0 cm is connected to a lawn sprinkle that consists of an enclosure with 24 holes , each 0.125 cm in diameter. If water in the hose has a speed of 90.0 cm s^(-1) , find the speed of of 90.0 cm s^(-1) , find the speed of the water having the sprinkler hole.

When solid is heated , its length changes according to the relation l=l_0(1+alphaDeltaT) , where l is the final length , l_0 is the initial length , DeltaT is the change in temperature , and alpha is the coefficient of linear is called super - facial expansion. the area changes according to the relation A=A_0(1+betaDeltaT) , where A is the tinal area , A_0 is the initial area, and beta is the coefficient of areal expansion. A metal disc having a circular hole at its center is heated . If the metal expands on heating , the diameter of the hole

The figure shows a rectangular brass plate at 0^@C . in which there is cut a rectangular hole of dimensions indicated .if the temperature of the plate is raised to 150^@C , then