A thin magnetic needle oscillates in the horizontal plane with a time period of 2.0 sec. If the needle is broken into 4 equal parts perpendicular to its length, then the time period of each part will be
1stBrainly
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December 2022
How many of the following statements are correct (i) Ribs are cylindrical bones (ii) Pelvic girdle has two Ilium (iii) Hyoid bone which is not attached to any other bone in human body (iv) Vomer and Mandible are unpaired bones in our face (v) Stimulation of a muscle fiber by...
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December 2022
Two blocks A and B of masses 6 kg and 3kg rest on a smooth horizontal surface as shown in the figure. If coefficient of friction between A and B is 0.4, the maximum horizontal force which can make them without separation is 1) 72 N 2) 40 N 3)...
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December 2022
A grasshopper can jump maximum distance 1.6 m. It spends negligible time on the ground. How far can it go in 10 s ?
Spams are Reported The net primary productivity of an ecosystem is
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December 2022
The flower fly resembles a honey bee, but the flower fly has no stings. This is as example of
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December 2022
A man swims from a point A on one bank of a river of width 100 m. When he swims perpendicular to the water current he reaches the other bank 50 m downstream. The angle to the bank at which he should swim, to reach the directly opposite point B...
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December 2022
When excess of water is introduced in human blood 1) BMR decreases 2) RBC collapse and urine production increases 3) BMR increases 4) RBC collapse and urine production decreases
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December 2022
Which is a false statement about skeletal muscle? 1) A myofibril is composed of multiple muscle fibres. 2) Most skeletal muscles attach to bones by connective tissue called tendons. 3) Each thick filament is surrounded by thin filaments. 4) A cross arm is a portion of the myosin molecule.
1stBrainly
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December 2022
How many statements are true 1) Rice is a short day plant 2) IAA and NAA are generally called stress hormone 3) 2, 4, D is a naturally occuring cytokinin 4) Environmental rhythms of light and darkness produce photoperiodism 5) ABA plays an important role in seed development, maturation and...
Majority of blood volume is located in :
1stBrainly
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December 2022
Phenol react with conc. H2SO4 to form phenol-2,4-disulphonic acid, which when treated with conc.HNO3 produce 1) Sulphanilic acid 2) Picric acid 3) p-nitrophenol 4) 1,3,5-trinitrophenol
1stBrainly
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December 2022
Two bodies bearing equal and opposites charges has a force F between them. Now they are connected by a conductor so that 25% of charge from one body flows to the other. Now the force between them is:
cycloTrimetaphosphoric acid. no of sigma and double bond
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December 2022
For the coagulation of 50 ml of ferric hydroxide sol. 1 ml of 5 M KCl is required. The coagulation value is very close to
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December 2022
Which of the following acts as a nucleophile in the aldol condensation of ethanal?
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December 2022
A stone is dropped from the top of a tower of height h. After 1s another stone is dropped from the balcony 20 m below the top. Both reach the bottom simultaneously. What is the value of h? Take g = 10 ms-2.