A car travels due east on a level road for 3 km. it then turns the North at an intersection and travels 4 km before stopping.The magnitude of the resultant displacement of car is
A wire of 100 mm length and 1 mm2surface area stretches 10 mm under a load of 60 N. A second wire of same material, with half the diameter of the first wire is stretched by the same load. What is the extension in the second wire?
The uranium Nucleus 𝟐𝟑𝟖 𝑼 undergoes successive decays, emitting respectively 𝑎 − 𝒓𝒂𝒚,𝖰 −
𝒓𝒂𝒚 𝒂𝒏𝒅 − 𝒓𝒂𝒚𝒔. What is the atomic number and atomic mass of the resulting nucleus:
If g is the acceleration due to gravity on the surface of the earth, then the value of the acceleration due to gravity at height equal to R/2 from the surface of earth is (R is the radius of the earth)
A progressive sound wave is a means of transferring energy. A progressive sound waveof constant frequency is generated in air. The intensity of energy transfer is directlyproportional to another of the wave parameters. Which of the following is correct?
The two electric charges originally 8 cm apart are brought closer together, until they are 2 cm apart the force between them is now greater by a factor
An excess af silver nitrate is added to the aqueous barium chloride and the precipitate is removed by filtration. What are the main ions in the filtrate?
Lipids are naturally occurring compounds produced in cell and are water insoluble but soluble in organic solvents. One of the followings is not a lipid. Select among the following
Compound X & Y give effervesce with Na2CO3, solution. X gives a white ppt with ammonical AgNO3 while Y gives sweet smell compound on heating with alcohol X &Y are
The gecko a small lizard can up a smooth glass window the gecko has millions of microscopic hairs on its toes and each hair has thousand of pads at its tip the result is that the molecules in the pad are extremely close to the glass surface on which the gecko is climbing.
What is the attraction between the gecko is climbing.
An organism of the lineage of animals in which the blastopore of the developing embryo becomes the anus, while a second opening becomes the mouth called:
Biosphere is spread out over the surface of planet earth extending about ______ kilometers in the upper reaches of atmosphere and also in same distance into the depths of oceans
Long popular among the connoisseurs of indian music Ravi Shankar first impressed western listeners with his phenomenal technical virtuosity but they soon came to appreciate his music as an artful expression of an older cultures musical insights
The authority of voice in Frazer's writing strikes many readers today as ______ colonialism; his prose seems as invulnerable and expansive as something on which the sun was presumed never to set
The revelation that shakespeare wrote certain of his plays expressly for queen elizabeth i lends credence to the theory that the dark lady of the sonnets was not shakespeares mistress nor any other woman the playwright had romanced but in fact the queen herself
