List of practice Questions

Vinegar contains:
A steel wire $0.5\, m$ long has a total mass $kg$ and stretched with a tension of $800\, N$. The frequency with which it vibrates in its fundamental note will be :
A girl is swinging on a swinging plate form in sitting position when the girl stands up then the period of swinging?
An automobile in travelling at 50 km/h, can be stopped at a distance of 40 m by applying brakes. If the same automobile is travelling at 90 km/h, all other conditions remaining same and assuming no skidding, the minimum stopping distance in metres is:
A man of weight $80\, kg$ is standing in an elevator which is moving with an acceleration of $ 6\,m/{{s}^{2}} $ in upward direction. The apparent weight of the man will be $ (g=10\,\,m/{{s}^{2}}) $ :
The red color of red sea is due to which of the following blue-green algae?
Both corpus luteum and macula lutea are
Glycolysis occurs in
Soil erosion can be prevented by
The magnetic lines of force inside a bar magnet
Which of the following statement is not true ?
Total number of bones in the hind limb of a man is:
Three forces start acting simultaneously on a particle moving with velocity $\vec{v}$ . These forces are represented in magnitude and direction by the three sides of a triangle ABC(as shown). The particle will now move with velocity
The value of amu is which of the following?
The sum of the radii of inscribed and circumscribed circles for an n sided regular polygon of side a, is
The ligand called p acid is
The intestinal juice, succus entericus is secreted by:
The first animal domesticated by primitive man was:
The escape velocity for the earth is $11.2 \,km / sec$. The mass of another planet $100$ times mass of earth and its radius is $4$ times radius of the earth. The escape velocity for the planet is:
Photorespiration in C plants starts from:
Photorespiration is favoured by:
Phenol in Liebermann' s nitroso test gives the colour
Molybdenum metal is related to which block?
Ratio of molecular weights of $A$ and $B$ is $ \frac{4}{25} $ then ratio of rates of diffusion will be:
Nylon threads are made of