Physics and Measurement — practice questions
85 curated practice questions from Physics and Measurement (Physics NEET, NTA Exams) — 24 medium, 40 easy, 21 hard. Every question includes the final answer free; step-by-step worked solutions with a free account.
- Assertion: In physics the microscopic domain is that domain which includes the study of properties of atomic…
- The de-Broglie wavelength associated with a particle of mass m and energy E is h 2 m E . Then, the dimensional formula…
- Given below are two statements. Statement I : Physical constants are the quantities whose values are constant…
- In dimension of critical velocity c , of liquid following through a tube are expressed as ( ^ x ^ y r^ 2 ) , where …
- An inexhaustible non-conventional universal source of energy is:
- The relative density of a metal may be found by hanging a block of the metal from a spring balance and noting that in…
- The diameter of a spherical bob, when measured with vernier calipers yielded the following values: 3.33 cm, 3.32 cm…
- Assertion: The nature of gravitational force is always attractive, whereas electromagnetic forces can be attractive or…
- The dimensions [MLT --2 A -2 ] belong to the
- Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A)…
- Given below are two statements: One is labeled as Assertion (A) and the other is labeled as Reason (R). Assertion (A) …
- Which of the following quantity has its dimensions different from the others?
- A screw gauge has 200 divisions and 1.0 mm pitch on a circular scale. The least count of the screw gauge is
- The length of a rectangular strip measured with a meter rod is 10.0 cm. Its width measured with a vernier calipers is…
- Which of the following is the correct decreasing order of the strengths of four fundamental forces of nature?
- Which of the following was not explained by Newtonian mechanics :
- In the formula X = 3YZ 2 , X and Z have dimensions of capacitance and magnetic field respectively. What are the…
- If k denotes coefficient of thermal conductivity, d the density and c the specific heat, the unit of y where y = k/dc…
- Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A)…
- According to the special theory of relativity, which of the following has the same value in all inertia frames?
- A screw gauge gives the following reading when used to measure the diameter of a wire. Main scale reading : 0 mm…
- The physical quantity which has the dimension ML ^ -1 ~T ^ -2 , is
- Given below are two statements. Statement I : When we change the unit of measurement of a quantity, its numerical value…
- In a vernier calipers, N divisions of the vernier scale coincide with (N — 1) divisions of the main scale in which the…
- If force (F), area (A) and density (D) are taken as the fundamental units, the representation of Young's modulus will be
- In an experiment determining the mass of a body, the measurement yields 54.6 kg. The number of significant figures is
- A large part of earth is occupied by hydrosphere in the form of oceans. The percentage of spread of ocean on the earth…
- Correctly match the following names with corresponding inventions Column I Column II (A) Archimedes (i) Electromagnetic…
- A quantity f is given by f= h c^ 5 C where c is speed of light, G universal gravitational constant and h is the…
- The amount of heat produced in an electric circuit depends upon current ( I ), resistance (R) and time (t) according to…
- The order of magnitude of the value 9.82 10^ 11 is
- A string of uniform thickness and length I is subjected to a tensile force F. It vibrates with frequency v in p…
- Suppose we take the velocity of light 'c', the acceleration due to gravity 'g' and the atmospheric pressure 'p' as…
- For the given statements If Δa and Δb be the mean absolute errors in a and b, then the mean absolute error in the…
- The radius of a wire is 0.021 cm and the value of π is accurately given as 3.1416. The numbers of significant figures…
- Which of the following statements is/are correct? (i) Strong nuclear force binds protons and neutrons in a nucleus…
- The SI unit of coefficient of thermal conductivity is (W = watt, m = metre, K = kelvin)
- The potential energy of a particle varies with distance x from a fixed origin as y= A x x+B , where A and B are…
- The dimensions of a b in the equation P= a-t^ 2 b x where, P is pressure, x is distance and t is time, are :
- Assertion: Strong nuclear forces cannot be experienced by electrons. Reason: Strong nuclear forces are always charge…
- Which of the following is not included in classical physics?
- Which of the following force follows the inverse square law of distance?
- If force (F), velocity (V) and time (T) are taken as fundamental units, then the dimensions of mass are:
- The velocity of a particle v at an instant t is given by v=a t+b t^ 2 . Then, the dimension of b is
- 'Gray biotechnology' is referred to [AMU (Med.) 2010]
- Assertion: When a spring is elongated or compressed then the elastic spring force arises due to the net attraction or…
- A force F is given by F = at + bt 2 , where t is time. What are the dimensions of a and b?
- Assertion: While performing an experiment in the laboratory today and repeating it after five years on same object…
- Which of the following physical quantities expressed as pairs, DO NOT have identical dimensions?
- Which of the following is a possible final step in applying the scientific method?
- The dimension of magnetic field in M, L, T and C (Coulomb) is given as
- What is the meaning of the statement ‘basic laws of physics are universal’?
- Surface tension is the force per unit length. The fundamental units involved in it is/are
- Given that displacement of a particle is given by x=A^ 2 ^ 2 (k t) , where t is time in sec. The unit of k is
- The significant figures in the given two numbers 205.032 and 27000 are respectively
- A sports girl runs 100.5 m in 10.3 seconds. Appropriate significant figures in her average speed are :
- Which of the following is not the fundamental force in nature?
- Given below are two statements. Statement I : In the equation momentum, P^ 2 = mas5 area x , the dimensional formula of…
- The radius of proton is about 10^ -9 microns, and the radius of universe is about 10 26 m. The physical object whose…
- Penicillin was used in [NCERT Pg. No. 152] [DPMT 2007]
- Assertion: The basic laws of electromagnetism govern all electric and magnetic phenomena. Reason: The attempts to unify…
- Out of the following four dimensional quantities, which one qualifies to be called a dimensional constant?
- If momentum (P), area (A) and time (T) are taken to be the fundamental quantities then the dimensional formula for…
- The equation of state of some gases can be expressed as (P+ a V^ 2 )(V-b)=R T where, P is the pressure, V the volume, T…
- For the four sets of three measured physical quantities as given below. Which of the following options is correct? A 1…
- The “World Intellectual Property Day” is observed on [KCET 2011]
- The main scale of a screw gauge moves by 0.5 mm in one complete rotation of circular scale having 50 divisions. The…
- A book with many printing errors contains four different formulae for the displacement of a particle undergoing a…
- A square sheet has a side of length 1.8 cm. Its surface area in corrected significant figures would be
- The main scale of a vernier callipers has n divisions/cm. n divisions of the vernier scale coincide with (n - 1)…
- The electromagnetic radiation used in food process-ing sterilizing agent is :
- If g E and g m are the accelerations due to gravity on the surface of the Earth and the Moon respectively and if…
- Assertion: The properties of a bigger and complex system are derived from the properties and interactions of its…
- Assertion: The concept of energy is central to Physics and expression for energy can be written for every physical…
- What is the difference between nuclear forces and electromagnetic forces?
- The density of a solid ball is to be determined in an experiment. The diameter of the ball is measured with a screw…
- What will be the order of magnitude of 3.12 10^ 12 ?
- Given below are two statements Statement I : First law of thermodynamics is a restatement of the principle of…
- The pitch of a screw gauge is 1 mm and there are 100 divisions on the circular scale. While measuring the diameter of a…
- A small steel ball of radius r is falling under gravity through a column of a viscous liquid of coefficient of…
- Which of the following combinations has the dimension of time?
- Conductivity (Seimens, S) is directly proportional to area of the vessel and the concentration of the solution in it…
- World Health Day is celebrated every year on
- Multiplying 3.908 x 5.53. The answer in corrected significant figures is
- The various phenomenon taking place in the universe are governed by