⟩ How important is to get the passengers switch off the mobile phones and laptops during land off? What could be the consequences?
It is very important to check if laptop and mobile phones are switched off or not, as the consequences can be bad. Because interference of air crafts communication devices and electronic devices interfere with each other and there could be chances of not proper landing.
So, it's highly recommended that all electronic and communication devices should be switched off during take off and landing.