841 In bringing an electron towards the second electron, the electrostatic potential energy of the system Physics Medium Full question → A Decreases B increases C remains the same D becomes zero
842 Angle between the rectangular components of a vector is________? Physics Medium Full question → A Zero B 30° C 45° D 90°
843 What is the minimum number of unequal magnitude vectors required to get a null vector? Physics Medium Full question → A Zero B Two C Three D None
844 Which of the following pair of forces can produce a resultant of 8N? Physics Medium Full question → A 2N & 5N B 20N & 2N C 3N & 6N D 4N & 1N
845 Which of the following can not be the resultant of two vectors having magnitude 10N and 15N? Physics Medium Full question → A 18N B 22N C 25N D 30N
846 The vector A= 2i^+2j^ makes_______ angle with x-axis.? Physics Medium Full question → A 30° B 45° C 60° D 90°
847 For what value of “a” , the magnitude of a vector A= 2i^+j^+ak^ should be 3? Physics Medium Full question → A -2 B 2 C 4 D Both A & B
848 A vector can have maximum________components in space.? Physics Medium Full question → A Zero B Two C Three D Infinite
849 A vector can have maximum________components in a plane.? Physics Medium Full question → A Zero B Two C Three D Infinite
850 The mass of Platinum cylinder kept near Paris is________? Physics Medium Full question → A 1 gram B 1 Kg C 100 Kg D None
851 A train is moving with a speed of 100mph. What will be its speed in m/s.? Physics Medium Full question → A 45 m/s B 90 m/s C 100 m/s D 120 m/s
852 Which of the following is not a unit of length? Physics Medium Full question → A light year B radian C angstrom D micron
853 Study of sound is called _____________? Physics Medium Full question → A Soundlogy B Acoustics C Neurology D Physiology
854 We have two bodies, One is moving with 2m/s velocity and other is at rest, which one has greater inertia? Physics Medium Full question → A Moving body B Body is at rest C Both have not any inertia D Both have same inertia because inertia depends upon mass only
855 Inertia is depends upon only? Physics Medium Full question → A Velocity B Direction C Mass D Time
856 Unit vector is used to specify the _____________? Physics Medium Full question → A Magnitude B Velocity C Direction of vector D Frequency
857 Product of wavelength and time period is _______________? Physics Medium Full question → A Frequency B Velocity C Time period D Wavelength
858 Product of time period and frequency is ____________? Physics Medium Full question → A Time period B Frequency C Unity D Velocity
859 1atm is equal to Physics Medium Full question → A 760 torr B 760 mmHg C 101.3 kPa D all of the above
860 Which of the following is path funtion? Physics Medium Full question → A Internal energy B work and heat C Enthalpy D Entropy