The electron microscope has been widely used to obtain highly magnified images of biological and other types of materials. when an electron is accelerated through a particular potential field, it attains a speed of 9.76×106 m/s .what is the characteristic wavelength of this electron? (mass of electron is 9.1094×10−31 kg)

Answer is 7.45 x 10⁻¹¹ m

Explanation;

To solve this problem we can use De Broglie equation,

∧ = h / mv

Where, ∧ is the wave length (m), h is the Planck's constant (6.626 × 10⁻³⁴ m² kg / s), m is the mass (kg) and v is the velocity of the object (m/s).

∧ = ?

h = 6.626 × 10⁻³⁴ m² kg / s

v = 9.76 × 10⁶ m/s

m = 9.1094 × 10⁻³¹ kg

From substitution,

∧ = (6.626 × 10⁻³⁴ m² kg / s ) / ( 9.76 × 10⁶ m/s x 9.1094 × 10⁻³¹ kg)

∧ = 7.45 x 10⁻¹¹ m

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explanation:

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.