JEE Main 2020 (Online) 8th January Morning Slot | Units & Measurements Question 127 | Physics

The dimension of stopping potential V₀ in photoelectric effect in units of Planck's constant 'h', speed of light 'c' and Gravitational constant 'G' and ampere A is :

h^1/3 G^2/3 c^1/3 A^–1

h⁰ c⁵ G^-1 A^-1

h^2/3 c^5/3 G^1/3 A^–1

h² G^3/2 c^1/3 A^–1

JEE Main 2020 (Online) 7th January Evening Slot

MCQ (Single Correct Answer)

-1

The dimension of $${{{B^2}} \over {2{\mu _0}}}$$, where B is magnetic field and $${{\mu _0}}$$ is the magnetic permeability of vacuum, is :

ML²T^–2

MLT^–2

ML^-1T^–2

ML²T^–1

JEE Main 2019 (Online) 12th April Morning Slot

MCQ (Single Correct Answer)

-1

Which of the following combinations has the dimension of electrical resistance ($$ \in $$₀is the permittivity of vacuum and $$\mu $$₀ is the permeability of vacuum)?

$$\sqrt {{{{ \in _0}} \over {{\mu _0}}}} $$

$${{{{ \in _0}} \over {{\mu _0}}}}$$

$$\sqrt {{{{\mu _0}} \over {{ \in _0}}}} $$

$${{{{\mu _0}} \over {{ \in _0}}}}$$

JEE Main 2019 (Online) 10th April Evening Slot

MCQ (Single Correct Answer)

-1

In the formula X = 5YZ² , X and Z have dimensions of capacitance and magnetic field, respectively. What are the dimensions of Y in SI units?

[M^–3L^–2T⁸A⁴]

[M^–2L^–2T⁶A³]

[M^–1L^–2T⁴A²]

[M^–2L⁰ T^–4A^–2]