Which one of the following metals is used in the filaments of photo-electric cells that convert light energy into electric energy?
Which one of the following metals is alloyed with sodium to transfer heat in a nuclear reactor?
Which one of the following alkali metals has lowest melting point?
Two convex lenses with power 2 dioptre are kept in contact with each other. The focal length of the combined lens system is
Which one of the following statements about magnetic field lines is not correct?
Which one of the following statements about the refractive index of a material medium with respect to air is correct?
Which one of the following is an example of the force of gravity of the earth acting on a vibrating pendulum bob?
Which of the following statements about specific heat of a body is/are correct?
Select the correct answer using the codes given below
If by an unknown accident the acid secreting cells of the stomach wall of an individual are damaged. Digestion of which one of the following biomolecule will be affected to a greater extent?
Which one of the following types of tissues will have contractile proteins?
Who among the following first discovered cell?
Which one of the following elements is needed in the human body to transfer electrical signals by nerve cells?
The poisonous nature of carbon monoxide (CO) is due to its
Which one of the following is the purest form of carbon?
Which one of the following properties is not true for graphite?
How is carbon black obtained?
Which one of the following is the number of water molecules that share with two formula unit CaSO4 in Plaster of Paris?
Which one of the following devices is sued to measure atmospheric pressure?
A ball balanced on a vertical rod is an example of
Which one of the following statements about meristematic tissues in plants is correct?
Which one of the following is the correct sequence of levels of hierarchy of classification of organisms from higher to lower?
Which one of the following statements about classification of plants is correct?
Which one of the following parts of body does not take part in the process of breathing?
Which one of the following organelle is not found in prokaryotic cells?
AIDS is caused by a virus whose genetic material is
Which one of the following is the chemical formula of Washing Soda?
Brine is an aqueous solution of
Which one of the following gives the highest amount of hydrogen ions (H+)?
Which of the following properties is true for a tooth paste?
The accidental touch of Nettle leaves creates a burning sensation, which is due to inject of
Which one of the following frequency range is sensitive to human ears?
Which one of the following is the natural phenomenon based on which a simple periscope works?
Which one of the following devices is non-ohmic?
Whether an object will float or sink in a liquid, depends on
Which one of the following statements about gravitational force is not correct?
Which one of the following is the value of 1 kWh of energy converted into joules?
Which one of the following has maximum inertia?
What is the net force experienced by a bar magnet placed in a uniform magnetic field?
An object is moving, with uniform acceleration a. Its initial velocity is u and after time t its velocity is v. The equation of its motion is v = u + at. The velocity (along y-axis) time (along x-axis) graph shall be a straight line
If an object moves with constant velocity then which one of the following statements is not correct?
If T is the time period of an oscillating pendulum, which one the following statements is not correct?
Which of the following leaf modifications occur(s) in the desert areas to inhibit water loss?
Select the correct answer using the code given below:
Which one of the following is an example of chemical change?
The SI unit of mechanical power is:
A piece of ice, 100 g in mass is kept at 0°C. The amount of heat it requires to melt at 0°C is (take latent heat of melting of ice to be 333.6 J/g):
A myopic person has a power of -1.25 Dioptre. What is the focal length and nature of his lens?
A person rings a metallic bell near a strong concrete wall. He hears the echo after 0.3 s. If the sound moves with a speed of 340 m/s, how far is the wall from him?
Plants contain a variety of sterols like stigmasterol, ergosterol, sitosterol etc., Which very closely resemble cholesterol. These plant sterols are referred as:
The living content of cell is called protoplasm. It is composed of:
In artificial insemination (AI) process, which of the following is/are introduced into the uterus of the female?
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